WIP: electricPotential: add space charge density hook

.gitlab/issue_templates/bug.md

@@ -49,10 +49,10 @@
 
 <!--
   Providing details of your set-up can help us identify any issues, e.g.
-  OpenFOAM version : v2506|v2412|v2406|v2312|v2306 etc
-  Operating system : ubuntu|openSUSE|RedHat etc
+  OpenFOAM version : v2212|v2206|v2112|v2106|v2012 etc
+  Operating system : ubuntu|openSUSE|centos etc
   Hardware info    : any info that may help?
-  Compiler         : gcc|clang etc
+  Compiler         : gcc|intel|clang etc
  -->
 
 - OpenFOAM version :

.gitmodules

@@ -1,8 +1,8 @@
 [submodule "cfmesh"]
-	path = plugins/cfmesh
+	path = modules/cfmesh
 	url = https://develop.openfoam.com/Community/integration-cfmesh.git
 [submodule "avalanche"]
-	path = plugins/avalanche
+	path = modules/avalanche
 	url = https://develop.openfoam.com/Community/avalanche.git
 [submodule "adios"]
 	path = modules/adios
@@ -17,9 +17,3 @@
 [submodule "external-solver"]
 	path = modules/external-solver
 	url = https://develop.openfoam.com/Modules/external-solver.git
-[submodule "turbulence-community"]
-	path = plugins/turbulence-community
-	url = https://gitlab.com/openfoam/community/tc-turbulence/turbulence-community.git
-[submodule "plugins/data-community"]
-	path = plugins/data-community
-	url = https://gitlab.com/openfoam/community/sig-data-modelling/data-community.git

Allwmake

@@ -68,34 +68,19 @@ src/Allwmake $targetType $*
 # OpenFOAM applications
 applications/Allwmake $targetType $*
 
-#------------------------------------------------------------------------------
-# Additional components
 
+# Additional components/modules
 case "$FOAM_MODULE_PREFIX" in
 (false | none)
     echo ========================================
     echo "OpenFOAM modules disabled (prefix=${FOAM_MODULE_PREFIX})"
-    echo "Can be built separately:"
-    echo
-    echo "    ./Allwmake-modules -prefix=..."
-    echo
-    echo ========================================
     echo
     ;;
 (*)
     # Use wmake -all instead of Allwmake to allow for overrides
     ( cd "$WM_PROJECT_DIR/modules" 2>/dev/null && wmake -all )
-
-    echo ========================================
-    echo "The optional plugins can be built separately:"
-    echo
-    echo "    ./Allwmake-plugins -prefix=..."
-    echo
-    echo ========================================
-    echo
 esac
 
-#------------------------------------------------------------------------------
 # Count files in given directory. Ignore "Test-*" binaries.
 _foamCountDirEntries()
 {
@@ -111,12 +96,10 @@ echo "  ${WM_PROJECT_DIR##*/}"
 echo "  $WM_COMPILER ${WM_COMPILER_TYPE:-system} compiler"
 echo "  ${WM_OPTIONS}, with ${WM_MPLIB} ${FOAM_MPI}"
 echo
-
-# The api/patch information
-sed -e 's/^/  /; s/=/ = /' ./META-INFO/api-info 2>/dev/null || true
-
-echo "  bin = $(_foamCountDirEntries "$FOAM_APPBIN") entries"
-echo "  lib = $(_foamCountDirEntries "$FOAM_LIBBIN") entries"
+echo "  api   = $(etc/openfoam -show-api 2>/dev/null)"
+echo "  patch = $(etc/openfoam -show-patch 2>/dev/null)"
+echo "  bin   = $(_foamCountDirEntries "$FOAM_APPBIN") entries"
+echo "  lib   = $(_foamCountDirEntries "$FOAM_LIBBIN") entries"
 echo
 echo ========================================
 

Allwmake-modules

@@ -1,39 +0,0 @@
-#!/bin/sh
-cd "${0%/*}" || exit            # Run from this directory
-set -- -no-recursion "$@"       # Parse arguments only
-
-# Run from OPENFOAM top-level directory only
-wmake -check-dir "$WM_PROJECT_DIR" 2>/dev/null || {
-    echo "Error (${0##*/}) : not located in \$WM_PROJECT_DIR"
-    echo "    Check your OpenFOAM environment and installation"
-    exit 1
-}
-if [ -f "$WM_PROJECT_DIR"/wmake/scripts/AllwmakeParseArguments ]
-then  . "$WM_PROJECT_DIR"/wmake/scripts/AllwmakeParseArguments || \
-    echo "Argument parse error"
-else
-    echo "Error (${0##*/}) : WM_PROJECT_DIR appears to be incorrect"
-    echo "    Check your OpenFOAM environment and installation"
-    exit 1
-fi
-
-#------------------------------------------------------------------------------
-# Additional components
-
-case "$FOAM_MODULE_PREFIX" in
-(false | none)
-    echo ========================================
-    echo "OpenFOAM modules disabled (prefix=${FOAM_MODULE_PREFIX})"
-    echo "Can be built separately:"
-    echo
-    echo "    ./Allwmake-modules -prefix=..."
-    echo
-    echo ========================================
-    echo
-    ;;
-(*)
-    # Use wmake -all instead of Allwmake to allow for overrides
-    ( cd "$WM_PROJECT_DIR/modules" 2>/dev/null && wmake -all )
-esac
-
-#------------------------------------------------------------------------------

Allwmake-plugins

@@ -1,39 +0,0 @@
-#!/bin/sh
-cd "${0%/*}" || exit            # Run from this directory
-set -- -no-recursion "$@"       # Parse arguments only
-
-# Run from OPENFOAM top-level directory only
-wmake -check-dir "$WM_PROJECT_DIR" 2>/dev/null || {
-    echo "Error (${0##*/}) : not located in \$WM_PROJECT_DIR"
-    echo "    Check your OpenFOAM environment and installation"
-    exit 1
-}
-if [ -f "$WM_PROJECT_DIR"/wmake/scripts/AllwmakeParseArguments ]
-then  . "$WM_PROJECT_DIR"/wmake/scripts/AllwmakeParseArguments || \
-    echo "Argument parse error"
-else
-    echo "Error (${0##*/}) : WM_PROJECT_DIR appears to be incorrect"
-    echo "    Check your OpenFOAM environment and installation"
-    exit 1
-fi
-
-#------------------------------------------------------------------------------
-# Additional components
-
-case "$FOAM_MODULE_PREFIX" in
-(false | none)
-    echo ========================================
-    echo "OpenFOAM plugins disabled (prefix=${FOAM_MODULE_PREFIX})"
-    echo "Can be built separately:"
-    echo
-    echo "    ./Allwmake-plugins -prefix=..."
-    echo
-    echo ========================================
-    echo
-    ;;
-(*)
-    # Use wmake -all instead of Allwmake to allow for overrides
-    ( cd "$WM_PROJECT_DIR/plugins" 2>/dev/null && wmake -all )
-esac
-
-#------------------------------------------------------------------------------

CONTRIBUTORS.md

@@ -5,29 +5,22 @@ It is likely incomplete...
 
 ## Contributors (alphabetical by surname)
 
-- Horacio Aguerre
-- Yu Ankun
 - Tetsuo Aoyagi
 - Akira Azami
-- Pete Bachant
 - William Bainbridge
 - Gabriel Barajas
 - Kutalmis Bercin
-- Julius Bergmann
 - Ivor Clifford
 - Greg Collecutt
 - Jonathan Cranford
-- Santiago Marquez Damian
 - Sergio Ferraris
 - Matej Forman
 - Marian Fuchs
-- Gabriel Gerlero
 - Pawan Ghildiyal
 - Chris Greenshields
 - Bernhard Gschaider
 - Andrew Heather
 - David Hill
-- Crist<73>bal Ib<49><62>ez
 - Yoshiaki Inoue
 - Mattijs Janssens
 - Andrew Jackson
@@ -35,7 +28,6 @@ It is likely incomplete...
 - Alexander Kabat vel Job
 - Thilo Knacke
 - Shannon Leakey
-- Sergey Lesnik
 - Tommaso Lucchini
 - Graham Macpherson
 - Alexey Matveichev
@@ -48,7 +40,6 @@ It is likely incomplete...
 - Victor Olesen
 - Evangelos Papoutsis-Kiachagias
 - Juho Peltola
-- Josep Pocurull
 - Johan Roenby
 - Henrik Rusche
 - Bruno Santos
@@ -59,12 +50,8 @@ It is likely incomplete...
 - Gavin Tabor
 - Zeljko Tukovic
 - Eugene De Villiers
-- Louis Vittoz
-- Vuko Vukcevic
 - Yi Wang
 - Norbert Weber
-- Gregor Weiss
-- Volker Weissmann
 - Henry Weller
 - Niklas Wikstrom
 - Guanyang Xue

META-INFO/api-info

@@ -1,2 +1,2 @@
-api=2506
+api=2212
 patch=0

README.md

@@ -40,9 +40,9 @@ Violations of the Trademark are monitored, and will be duly prosecuted.
 
 If OpenFOAM has already been compiled on your system, simply source
 the appropriate `etc/bashrc` or `etc/cshrc` file and get started.
-For example, for the OpenFOAM-v2506 version:
+For example, for the OpenFOAM-v2212 version:
 ```
-source /installation/path/OpenFOAM-v2506/etc/bashrc
+source /installation/path/OpenFOAM-v2212/etc/bashrc
 ```
 
 ## Compiling OpenFOAM
@@ -127,8 +127,8 @@ These 3rd-party sources are normally located in a directory parallel
 to the OpenFOAM directory. For example,
 ```
 /path/parent
-|-- OpenFOAM-v2506
-\-- ThirdParty-v2506
+|-- OpenFOAM-v2212
+\-- ThirdParty-v2212
 ```
 There are, however, many cases where this simple convention is inadequate:
 
@@ -136,7 +136,7 @@ There are, however, many cases where this simple convention is inadequate:
   operating system or cluster installation provides it)
 
 * When we have changed the OpenFOAM directory name to some arbitrary
-  directory name, e.g. openfoam-sandbox2412, etc..
+  directory name, e.g. openfoam-sandbox2212, etc..
 
 * When we would like any additional 3rd party software to be located
   inside of the OpenFOAM directory to ensure that the installation is
@@ -156,9 +156,9 @@ when locating the ThirdParty directory with the following precedence:
 2. PREFIX/ThirdParty-VERSION
    * this corresponds to the traditional approach
 3. PREFIX/ThirdParty-vAPI
-   * allows for an updated value of VERSION, *eg*, `v2506-myCustom`,
+   * allows for an updated value of VERSION, *eg*, `v2212-myCustom`,
      without requiring a renamed ThirdParty. The API value would still
-     be `2412` and the original `ThirdParty-v2506/` would be found.
+     be `2212` and the original `ThirdParty-v2212/` would be found.
 4. PREFIX/ThirdParty-API
    * same as the previous example, but using an unadorned API value.
 5. PREFIX/ThirdParty-common
@@ -213,4 +213,4 @@ ThirdParty directory will contain either an `Allwmake` file or a
 - [Governance](http://www.openfoam.com/governance/), [Governance Projects](https://www.openfoam.com/governance/projects)
 - [Contacting OpenCFD](http://www.openfoam.com/contact/)
 
-Copyright 2016-2024 OpenCFD Ltd
+Copyright 2016-2022 OpenCFD Ltd

applications/solvers/DNS/dnsFoam/dnsFoam.C

@@ -118,7 +118,7 @@ int main(int argc, char *argv[])
                 fvm::laplacian(rAUf, p) == fvc::div(phiHbyA)
             );
 
-            pEqn.solve(p.select(piso.finalInnerIter()));
+            pEqn.solve(mesh.solver(p.select(piso.finalInnerIter())));
 
             phi = phiHbyA - pEqn.flux();
 

applications/solvers/acoustic/acousticFoam/readTransportProperties.H

@@ -18,6 +18,6 @@ dimensionedScalar rho("rho", dimDensity, transportProperties);
 
 scalar MaxCo =
     max(mesh.surfaceInterpolation::deltaCoeffs()*c0).value()
-   *runTime.deltaTValue();
+   *runTime.deltaT().value();
 
 Info<< "Max acoustic Courant Number = " << MaxCo << endl;

applications/solvers/basic/potentialFoam/createFields.H

@@ -13,14 +13,7 @@ volVectorField U
 );
 
 // Initialise the velocity internal field to zero
-// Note: explicitly bypass evaluation of contraint patch overrides
-//       (e.g. swirlFanVelocity might lookup phi,rho)
-//U = dimensionedVector(U.dimensions(), Zero);
-{
-    const dimensionedVector dt(U.dimensions(), Zero);
-    U.internalFieldRef() = dt;
-    U.boundaryFieldRef() = dt.value();
-}
+U = dimensionedVector(U.dimensions(), Zero);
 
 surfaceScalarField phi
 (

applications/solvers/basic/potentialFoam/overPotentialFoam/createFields.H

@@ -1,4 +1,125 @@
-#include "../createFields.H"
+Info<< "Reading velocity field U\n" << endl;
+volVectorField U
+(
+    IOobject
+    (
+        "U",
+        runTime.timeName(),
+        mesh,
+        IOobject::MUST_READ,
+        IOobject::AUTO_WRITE
+    ),
+    mesh
+);
+
+// Initialise the velocity internal field to zero
+U = dimensionedVector(U.dimensions(), Zero);
+
+surfaceScalarField phi
+(
+    IOobject
+    (
+        "phi",
+        runTime.timeName(),
+        mesh,
+        IOobject::NO_READ,
+        IOobject::AUTO_WRITE
+    ),
+    fvc::flux(U)
+);
+
+if (args.found("initialiseUBCs"))
+{
+    U.correctBoundaryConditions();
+    phi = fvc::flux(U);
+}
+
+
+// Construct a pressure field
+// If it is available read it otherwise construct from the velocity BCs
+// converting fixed-value BCs to zero-gradient and vice versa.
+
+// Allow override from command-line -pName option
+const word pName = args.getOrDefault<word>("pName", "p");
+
+// Infer the pressure BCs from the velocity
+wordList pBCTypes
+(
+    U.boundaryField().size(),
+    fixedValueFvPatchScalarField::typeName
+);
+
+forAll(U.boundaryField(), patchi)
+{
+    if (U.boundaryField()[patchi].fixesValue())
+    {
+        pBCTypes[patchi] = zeroGradientFvPatchScalarField::typeName;
+    }
+}
+
+// Note that registerObject is false for the pressure field. The pressure
+// field in this solver doesn't have a physical value during the solution.
+// It shouldn't be looked up and used by sub models or boundary conditions.
+Info<< "Constructing pressure field " << pName << nl << endl;
+volScalarField p
+(
+    IOobject
+    (
+        pName,
+        runTime.timeName(),
+        mesh,
+        IOobject::READ_IF_PRESENT,
+        IOobject::NO_WRITE,
+        false
+    ),
+    mesh,
+    dimensionedScalar(sqr(dimVelocity), Zero),
+    pBCTypes
+);
+
+// Infer the velocity potential BCs from the pressure
+wordList PhiBCTypes
+(
+    p.boundaryField().size(),
+    zeroGradientFvPatchScalarField::typeName
+);
+
+forAll(p.boundaryField(), patchi)
+{
+    if (p.boundaryField()[patchi].fixesValue())
+    {
+        PhiBCTypes[patchi] = fixedValueFvPatchScalarField::typeName;
+    }
+}
+
+Info<< "Constructing velocity potential field Phi\n" << endl;
+volScalarField Phi
+(
+    IOobject
+    (
+        "Phi",
+        runTime.timeName(),
+        mesh,
+        IOobject::READ_IF_PRESENT,
+        IOobject::NO_WRITE
+    ),
+    mesh,
+    dimensionedScalar(dimLength*dimVelocity, Zero),
+    PhiBCTypes
+);
+
+label PhiRefCell = 0;
+scalar PhiRefValue = 0;
+setRefCell
+(
+    Phi,
+    potentialFlow.dict(),
+    PhiRefCell,
+    PhiRefValue
+);
+mesh.setFluxRequired(Phi.name());
+
+#include "createMRF.H"
 
 // Add solver-specific interpolations
 {

applications/solvers/basic/potentialFoam/overPotentialFoam/overPotentialFoam.C

@@ -83,7 +83,6 @@ Description
     \heading Options
     \plaintable
         -writep   | write the Euler pressure
-        -writephi | Write the final volumetric flux
         -writePhi | Write the final velocity potential
         -initialiseUBCs | Update the velocity boundaries before solving for Phi
     \endplaintable
@@ -118,12 +117,6 @@ int main(int argc, char *argv[])
         "Initialise U boundary conditions"
     );
 
-    argList::addBoolOption
-    (
-        "writephi",
-        "Write the final volumetric flux field"
-    );
-
     argList::addBoolOption
     (
         "writePhi",
@@ -142,8 +135,6 @@ int main(int argc, char *argv[])
         "Execute functionObjects"
     );
 
-    #include "addRegionOption.H"
-    #include "addCheckCaseOptions.H"
     #include "setRootCaseLists.H"
     #include "createTime.H"
     #include "createNamedDynamicFvMesh.H"
@@ -203,16 +194,11 @@ int main(int argc, char *argv[])
             << endl;
     }
 
-    // Write U
+    // Write U and phi
     U.write();
+    phi.write();
 
-    // Optionally write the volumetric flux, phi
-    if (args.found("writephi"))
-    {
-        phi.write();
-    }
-
-    // Optionally write velocity potential, Phi
+    // Optionally write Phi
     if (args.found("writePhi"))
     {
         Phi.write();

applications/solvers/combustion/PDRFoam/PDRModels/dragModels/basic/basic.C

@@ -6,7 +6,6 @@
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
     Copyright (C) 2011-2016 OpenFOAM Foundation
-    Copyright (C) 2023 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -94,14 +93,24 @@ Foam::PDRDragModels::basic::~basic()
 
 Foam::tmp<Foam::volSymmTensorField> Foam::PDRDragModels::basic::Dcu() const
 {
-    auto tDragDcu = volSymmTensorField::New
+    tmp<volSymmTensorField> tDragDcu
     (
-        "tDragDcu",
-        IOobject::NO_REGISTER,
-        U_.mesh(),
-        dimensionedSymmTensor(dimMass/dimTime/dimVolume, Zero)
+        new volSymmTensorField
+        (
+            IOobject
+            (
+                "tDragDcu",
+                U_.mesh().time().constant(),
+                U_.mesh(),
+                IOobject::NO_READ,
+                IOobject::NO_WRITE
+            ),
+            U_.mesh(),
+            dimensionedSymmTensor(dimMass/dimTime/dimVolume, Zero)
+        )
     );
-    auto& DragDcu = tDragDcu.ref();
+
+    volSymmTensorField& DragDcu = tDragDcu.ref();
 
     if (on_)
     {
@@ -118,14 +127,24 @@ Foam::tmp<Foam::volSymmTensorField> Foam::PDRDragModels::basic::Dcu() const
 
 Foam::tmp<Foam::volScalarField> Foam::PDRDragModels::basic::Gk() const
 {
-    auto tGk = volScalarField::New
+    tmp<volScalarField> tGk
     (
-        "tGk",
-        IOobject::NO_REGISTER,
-        U_.mesh(),
-        dimensionedScalar(dimMass/dimLength/pow3(dimTime), Zero)
+        new volScalarField
+        (
+            IOobject
+            (
+                "tGk",
+                U_.mesh().time().constant(),
+                U_.mesh(),
+                IOobject::NO_READ,
+                IOobject::NO_WRITE
+            ),
+            U_.mesh(),
+            dimensionedScalar(dimMass/dimLength/pow3(dimTime), Zero)
+        )
     );
-    auto& Gk = tGk.ref();
+
+    volScalarField& Gk = tGk.ref();
 
     if (on_)
     {

applications/solvers/combustion/PDRFoam/PDRModels/turbulence/PDRkEpsilon/PDRkEpsilon.C

@@ -6,7 +6,7 @@
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
     Copyright (C) 2011-2016 OpenFOAM Foundation
-    Copyright (C) 2019-2020,2023 OpenCFD Ltd.
+    Copyright (C) 2019-2020 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -132,11 +132,6 @@ void PDRkEpsilon::correct()
 
     // Update epsilon and G at the wall
     epsilon_.boundaryFieldRef().updateCoeffs();
-    // Push new cell values to
-    // coupled neighbours. Note that we want to avoid the re-updateCoeffs
-    // of the wallFunctions so make sure to bypass the evaluate on
-    // those patches and only do the coupled ones.
-    epsilon_.boundaryFieldRef().evaluateCoupled<coupledFvPatch>();
 
     // Add the blockage generation term so that it is included consistently
     // in both the k and epsilon equations

applications/solvers/combustion/PDRFoam/XiModels/XiEqModels/Gulder/Gulder.C

@@ -69,8 +69,7 @@ Foam::XiEqModels::Gulder::~Gulder()
 Foam::tmp<Foam::volScalarField> Foam::XiEqModels::Gulder::XiEq() const
 {
     volScalarField up(sqrt((2.0/3.0)*turbulence_.k()));
-    const tmp<volScalarField> tepsilon(turbulence_.epsilon());
-    const volScalarField& epsilon = tepsilon();
+    const volScalarField& epsilon = turbulence_.epsilon();
 
     if (subGridSchelkin_)
     {

applications/solvers/combustion/PDRFoam/XiModels/XiEqModels/SCOPEXiEq/SCOPEXiEq.C

@@ -6,7 +6,6 @@
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
     Copyright (C) 2011-2016 OpenFOAM Foundation
-    Copyright (C) 2023 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -76,10 +75,8 @@ Foam::XiEqModels::SCOPEXiEq::~SCOPEXiEq()
 
 Foam::tmp<Foam::volScalarField> Foam::XiEqModels::SCOPEXiEq::XiEq() const
 {
-    const tmp<volScalarField> tk(turbulence_.k());
-    const volScalarField& k = tk();
-    const tmp<volScalarField> tepsilon(turbulence_.epsilon());
-    const volScalarField& epsilon = tepsilon();
+    const volScalarField& k = turbulence_.k();
+    const volScalarField& epsilon = turbulence_.epsilon();
 
     volScalarField up(sqrt((2.0/3.0)*k));
     if (subGridSchelkin_)
@@ -94,14 +91,23 @@ Foam::tmp<Foam::volScalarField> Foam::XiEqModels::SCOPEXiEq::XiEq() const
     volScalarField K(0.157*upBySu/sqrt(Rl));
     volScalarField Ma(MaModel.Ma());
 
-    auto tXiEq = volScalarField::New
+    tmp<volScalarField> tXiEq
     (
-        "XiEq",
-        IOobject::NO_REGISTER,
-        epsilon.mesh(),
-        dimensionedScalar(dimless, Zero)
+        new volScalarField
+        (
+            IOobject
+            (
+                "XiEq",
+                epsilon.time().timeName(),
+                epsilon.db(),
+                IOobject::NO_READ,
+                IOobject::NO_WRITE
+            ),
+            epsilon.mesh(),
+            dimensionedScalar(dimless, Zero)
+        )
     );
-    auto& xieq = tXiEq.ref();
+    volScalarField& xieq = tXiEq.ref();
 
     forAll(xieq, celli)
     {

applications/solvers/combustion/PDRFoam/XiModels/XiEqModels/XiEqModel/XiEqModel.C

@@ -78,10 +78,11 @@ bool Foam::XiEqModel::read(const dictionary& XiEqProperties)
 void Foam::XiEqModel::writeFields() const
 {
     //***HGW It is not clear why B is written here
-    const auto* B = Su_.mesh().cfindObject<volSymmTensorField>("B");
-    if (B)
+    if (Su_.mesh().foundObject<volSymmTensorField>("B"))
     {
-        B->write();
+        const volSymmTensorField& B =
+            Su_.mesh().lookupObject<volSymmTensorField>("B");
+        B.write();
     }
 }
 
@@ -97,26 +98,39 @@ Foam::XiEqModel::calculateSchelkinEffect(const scalar uPrimeCoef) const
     const volSymmTensorField& nsv =
         mesh.lookupObject<volSymmTensorField>("nsv");
 
-    auto tN = volScalarField::New
+    tmp<volScalarField> tN
     (
-        "tN",
-        IOobject::NO_REGISTER,
-        mesh,
-        dimensionedScalar(Nv.dimensions(), Zero)
+        new volScalarField
+        (
+            IOobject
+            (
+                "tN",
+                mesh.time().timeName(),
+                mesh,
+                IOobject::NO_READ,
+                IOobject::NO_WRITE,
+                false
+            ),
+            mesh,
+            dimensionedScalar(Nv.dimensions(), Zero)
+        )
     );
-    auto& N = tN.ref();
-
+    volScalarField& N = tN.ref();
     N.primitiveFieldRef() = Nv.primitiveField()*pow(mesh.V(), 2.0/3.0);
 
-    auto tns = volSymmTensorField::New
+    volSymmTensorField ns
     (
-        "tns",
-        IOobject::NO_REGISTER,
+        IOobject
+        (
+            "tns",
+            mesh.time().timeName(),
+            mesh,
+            IOobject::NO_READ,
+            IOobject::NO_WRITE
+        ),
         mesh,
         dimensionedSymmTensor(nsv.dimensions(), Zero)
     );
-    auto& ns = tns.ref();
-
     ns.primitiveFieldRef() = nsv.primitiveField()*pow(mesh.V(), 2.0/3.0);
 
     const volVectorField Uhat

applications/solvers/combustion/PDRFoam/XiModels/XiGModels/KTS/KTS.C

@@ -66,8 +66,7 @@ Foam::XiGModels::KTS::~KTS()
 Foam::tmp<Foam::volScalarField> Foam::XiGModels::KTS::G() const
 {
     volScalarField up(sqrt((2.0/3.0)*turbulence_.k()));
-    const tmp<volScalarField> tepsilon(turbulence_.epsilon());
-    const volScalarField& epsilon = tepsilon();
+    const volScalarField& epsilon = turbulence_.epsilon();
 
     volScalarField tauEta(sqrt(mag(thermo_.muu()/(thermo_.rhou()*epsilon))));
 

applications/solvers/combustion/PDRFoam/laminarFlameSpeed/SCOPE/SCOPELaminarFlameSpeed.C

@@ -6,7 +6,6 @@
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
     Copyright (C) 2011-2017 OpenFOAM Foundation
-    Copyright (C) 2023 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -256,14 +255,24 @@ Foam::tmp<Foam::volScalarField> Foam::laminarFlameSpeedModels::SCOPE::Su0pTphi
     scalar phi
 ) const
 {
-    auto tSu0 = volScalarField::New
+    tmp<volScalarField> tSu0
     (
-        "Su0",
-        IOobject::NO_REGISTER,
-        p.mesh(),
-        dimensionedScalar(dimVelocity, Zero)
+        new volScalarField
+        (
+            IOobject
+            (
+                "Su0",
+                p.time().timeName(),
+                p.db(),
+                IOobject::NO_READ,
+                IOobject::NO_WRITE
+            ),
+            p.mesh(),
+            dimensionedScalar(dimVelocity, Zero)
+        )
     );
-    auto& Su0 = tSu0.ref();
+
+    volScalarField& Su0 = tSu0.ref();
 
     forAll(Su0, celli)
     {
@@ -295,14 +304,24 @@ Foam::tmp<Foam::volScalarField> Foam::laminarFlameSpeedModels::SCOPE::Su0pTphi
     const volScalarField& phi
 ) const
 {
-    auto tSu0 = volScalarField::New
+    tmp<volScalarField> tSu0
     (
-        "Su0",
-        IOobject::NO_REGISTER,
-        p.mesh(),
-        dimensionedScalar(dimVelocity, Zero)
+        new volScalarField
+        (
+            IOobject
+            (
+                "Su0",
+                p.time().timeName(),
+                p.db(),
+                IOobject::NO_READ,
+                IOobject::NO_WRITE
+            ),
+            p.mesh(),
+            dimensionedScalar(dimVelocity, Zero)
+        )
     );
-    auto& Su0 = tSu0.ref();
+
+    volScalarField& Su0 = tSu0.ref();
 
     forAll(Su0, celli)
     {
@@ -339,14 +358,24 @@ Foam::tmp<Foam::volScalarField> Foam::laminarFlameSpeedModels::SCOPE::Ma
     const volScalarField& phi
 ) const
 {
-    auto tMa = volScalarField::New
+    tmp<volScalarField> tMa
     (
-        "Ma",
-        IOobject::NO_REGISTER,
-        phi.mesh(),
-        dimensionedScalar(dimless, Zero)
+        new volScalarField
+        (
+            IOobject
+            (
+                "Ma",
+                phi.time().timeName(),
+                phi.db(),
+                IOobject::NO_READ,
+                IOobject::NO_WRITE
+            ),
+            phi.mesh(),
+            dimensionedScalar(dimless, Zero)
+        )
     );
-    auto& ma = tMa.ref();
+
+    volScalarField& ma = tMa.ref();
 
     forAll(ma, celli)
     {
@@ -389,12 +418,21 @@ Foam::laminarFlameSpeedModels::SCOPE::Ma() const
     {
         const fvMesh& mesh = psiuReactionThermo_.p().mesh();
 
-        return volScalarField::New
+        return tmp<volScalarField>
         (
-            "Ma",
-            IOobject::NO_REGISTER,
-            mesh,
-            dimensionedScalar("Ma", dimless, Ma(equivalenceRatio_))
+            new volScalarField
+            (
+                IOobject
+                (
+                    "Ma",
+                    mesh.time().timeName(),
+                    mesh,
+                    IOobject::NO_READ,
+                    IOobject::NO_WRITE
+                ),
+                mesh,
+                dimensionedScalar("Ma", dimless, Ma(equivalenceRatio_))
+            )
         );
     }
 }

applications/solvers/combustion/PDRFoam/pEqn.H

@@ -27,7 +27,7 @@ if (pimple.transonic())
             betav*fvOptions(psi, p, rho.name())
         );
 
-        pEqn.solve(p.select(pimple.finalInnerIter()));
+        pEqn.solve(mesh.solver(p.select(pimple.finalInnerIter())));
 
         if (pimple.finalNonOrthogonalIter())
         {
@@ -57,7 +57,7 @@ else
             betav*fvOptions(psi, p, rho.name())
         );
 
-        pEqn.solve(p.select(pimple.finalInnerIter()));
+        pEqn.solve(mesh.solver(p.select(pimple.finalInnerIter())));
 
         if (pimple.finalNonOrthogonalIter())
         {

applications/solvers/combustion/PDRFoam/setDeltaT.H

@@ -36,13 +36,11 @@ Description
 if (adjustTimeStep)
 {
     scalar maxDeltaTFact = maxCo/(CoNum + StCoNum + SMALL);
-
-    const scalar deltaTFact =
-        Foam::min(Foam::min(maxDeltaTFact, 1.0 + 0.1*maxDeltaTFact), 1.2);
+    scalar deltaTFact = min(min(maxDeltaTFact, 1.0 + 0.1*maxDeltaTFact), 1.2);
 
     runTime.setDeltaT
     (
-        Foam::min
+        min
         (
             deltaTFact*runTime.deltaTValue(),
             maxDeltaT

applications/solvers/combustion/XiFoam/XiDyMFoam/pEqn.H

@@ -30,7 +30,7 @@ if (pimple.transonic())
             fvOptions(psi, p, rho.name())
         );
 
-        pEqn.solve(p.select(pimple.finalInnerIter()));
+        pEqn.solve(mesh.solver(p.select(pimple.finalInnerIter())));
 
         if (pimple.finalNonOrthogonalIter())
         {
@@ -66,7 +66,7 @@ else
             fvOptions(psi, p, rho.name())
         );
 
-        pEqn.solve(p.select(pimple.finalInnerIter()));
+        pEqn.solve(mesh.solver(p.select(pimple.finalInnerIter())));
 
         if (pimple.finalNonOrthogonalIter())
         {

applications/solvers/combustion/XiFoam/XiEngineFoam/pEqn.H

@@ -35,7 +35,7 @@ if (pimple.transonic())
             fvOptions(psi, p, rho.name())
         );
 
-        pEqn.solve(p.select(pimple.finalInnerIter()));
+        pEqn.solve(mesh.solver(p.select(pimple.finalInnerIter())));
 
         if (pimple.finalNonOrthogonalIter())
         {
@@ -71,7 +71,7 @@ else
             fvOptions(psi, p, rho.name())
         );
 
-        pEqn.solve(p.select(pimple.finalInnerIter()));
+        pEqn.solve(mesh.solver(p.select(pimple.finalInnerIter())));
 
         if (pimple.finalNonOrthogonalIter())
         {

applications/solvers/combustion/XiFoam/bEqn.H

@@ -171,7 +171,10 @@ if (ign.ignited())
 
         fvOptions.correct(Su);
 
-        Su.clamp_range(SuMin, SuMax);
+        // Limit the maximum Su
+        // ~~~~~~~~~~~~~~~~~~~~
+        Su.min(SuMax);
+        Su.max(SuMin);
     }
     else
     {
@@ -215,7 +218,7 @@ if (ign.ignited())
           + (
                 scalar(1)
               + (2*XiShapeCoef)
-               *(scalar(0.5) - clamp(b, zero_one{}))
+               *(scalar(0.5) - min(max(b, scalar(0)), scalar(1)))
             )*(XiEqStar - scalar(1.001))
         );
 
@@ -223,7 +226,7 @@ if (ign.ignited())
         volScalarField R(Gstar*XiEqStar/(XiEqStar - scalar(1)));
         volScalarField G(R*(XiEq - scalar(1.001))/XiEq);
 
-        //R *= (Gstar + 2*mag(devSymm(fvc::grad(U))))/Gstar;
+        //R *= (Gstar + 2*mag(dev(symm(fvc::grad(U)))))/Gstar;
 
         // Solve for the flame wrinkling
         // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

applications/solvers/combustion/XiFoam/pEqn.H

@@ -29,7 +29,7 @@ if (pimple.transonic())
             fvOptions(psi, p, rho.name())
         );
 
-        pEqn.solve(p.select(pimple.finalInnerIter()));
+        pEqn.solve(mesh.solver(p.select(pimple.finalInnerIter())));
 
         if (pimple.finalNonOrthogonalIter())
         {
@@ -64,7 +64,7 @@ else
             fvOptions(psi, p, rho.name())
         );
 
-        pEqn.solve(p.select(pimple.finalInnerIter()));
+        pEqn.solve(mesh.solver(p.select(pimple.finalInnerIter())));
 
         if (pimple.finalNonOrthogonalIter())
         {

applications/solvers/combustion/chemFoam/YEqn.H

@@ -6,7 +6,7 @@
         solve
         (
             fvm::ddt(rho, Yi) - chemistry.RR(specieI),
-            "Yi"
+            mesh.solver("Yi")
         );
     }
 }

applications/solvers/combustion/chemFoam/createBaseFields.H

@@ -12,7 +12,7 @@ Info<< "Creating base fields for time " << runTime.timeName() << endl;
             mesh,
             IOobject::READ_IF_PRESENT,
             IOobject::NO_WRITE,
-            IOobject::NO_REGISTER
+            false
         ),
         mesh,
         dimensionedScalar("Ydefault", dimless, 1)
@@ -29,7 +29,7 @@ Info<< "Creating base fields for time " << runTime.timeName() << endl;
             mesh,
             IOobject::READ_IF_PRESENT,
             IOobject::NO_WRITE,
-            IOobject::NO_REGISTER
+            false
         ),
         mesh,
         dimensionedScalar("p", dimPressure, p0)
@@ -46,7 +46,7 @@ Info<< "Creating base fields for time " << runTime.timeName() << endl;
             mesh,
             IOobject::READ_IF_PRESENT,
             IOobject::NO_WRITE,
-            IOobject::NO_REGISTER
+            false
         ),
         mesh,
         dimensionedScalar("T", dimTemperature, T0)

applications/solvers/combustion/chemFoam/setDeltaT.H

@@ -1,6 +1,5 @@
 if (adjustTimeStep)
 {
-    runTime.setDeltaT(Foam::min(dtChem, maxDeltaT));
-
-    Info<< "deltaT = " <<  runTime.deltaTValue() << endl;
+    runTime.setDeltaT(min(dtChem, maxDeltaT));
+    Info<< "deltaT = " <<  runTime.deltaT().value() << endl;
 }

applications/solvers/combustion/chemFoam/solveChemistry.H

@@ -1,3 +1,3 @@
-dtChem = chemistry.solve(runTime.deltaTValue());
+dtChem = chemistry.solve(runTime.deltaT().value());
 scalar Qdot = chemistry.Qdot()()[0]/rho[0];
-integratedHeat += Qdot*runTime.deltaTValue();
+integratedHeat += Qdot*runTime.deltaT().value();

applications/solvers/combustion/fireFoam/YEEqn.H

@@ -35,17 +35,17 @@ tmp<fv::convectionScheme<scalar>> mvConvection
 
             fvOptions.constrain(YiEqn);
 
-            YiEqn.solve("Yi");
+            YiEqn.solve(mesh.solver("Yi"));
 
             fvOptions.correct(Yi);
 
-            Yi.clamp_min(0);
+            Yi.max(0.0);
             Yt += Yi;
         }
     }
 
     Y[inertIndex] = scalar(1) - Yt;
-    Y[inertIndex].clamp_min(0);
+    Y[inertIndex].max(0.0);
 
     radiation->correct();
 

applications/solvers/combustion/fireFoam/createClouds.H

@@ -1,9 +1,9 @@
 Info<< "\nConstructing reacting cloud" << endl;
-basicReactingCloud parcels
+reactingCloud parcels
 (
     "reactingCloud1",
+    g,
     rho,
     U,
-    g,
     slgThermo
 );

applications/solvers/combustion/fireFoam/fireFoam.C

@@ -37,7 +37,7 @@ Description
 
 #include "fvCFD.H"
 #include "turbulentFluidThermoModel.H"
-#include "basicReactingCloud.H"
+#include "reactingCloud.H"
 #include "surfaceFilmModel.H"
 #include "pyrolysisModelCollection.H"
 #include "radiationModel.H"

applications/solvers/combustion/fireFoam/pEqn.H

@@ -36,7 +36,7 @@ while (pimple.correctNonOrthogonal())
       + fvOptions(psi, p_rgh, rho.name())
     );
 
-    p_rghEqn.solve(p_rgh.select(pimple.finalInnerIter()));
+    p_rghEqn.solve(mesh.solver(p_rgh.select(pimple.finalInnerIter())));
 
     if (pimple.finalNonOrthogonalIter())
     {

applications/solvers/combustion/fireFoam/phrghEqn.H

@@ -10,8 +10,7 @@ if (pimple.dict().getOrDefault("hydrostaticInitialization", false))
                 "0",
                 mesh,
                 IOobject::MUST_READ,
-                IOobject::NO_WRITE,
-                IOobject::REGISTER
+                IOobject::NO_WRITE
             ),
             mesh
         )

applications/solvers/combustion/fireFoam/setMultiRegionDeltaT.H

@@ -54,18 +54,9 @@ if (adjustTimeStep)
 
     runTime.setDeltaT
     (
-        Foam::min
+        min
         (
-            dt0
-          * Foam::min
-            (
-                Foam::min
-                (
-                    TFactorFluid,
-                    Foam::min(TFactorFilm, TFactorSolid)
-                ),
-                1.2
-            ),
+            dt0*min(min(TFactorFluid, min(TFactorFilm, TFactorSolid)), 1.2),
             maxDeltaT
         )
     );

applications/solvers/combustion/reactingFoam/EEqn.H

@@ -21,11 +21,6 @@
       + fvOptions(rho, he)
     );
 
-    if (MRF.active())
-    {
-        EEqn += fvc::div(MRF.phi(), p);
-    }
-
     EEqn.relax();
 
     fvOptions.constrain(EEqn);

applications/solvers/combustion/reactingFoam/YEqn.H

@@ -34,15 +34,15 @@ tmp<fv::convectionScheme<scalar>> mvConvection
 
             fvOptions.constrain(YiEqn);
 
-            YiEqn.solve("Yi");
+            YiEqn.solve(mesh.solver("Yi"));
 
             fvOptions.correct(Yi);
 
-            Yi.clamp_min(0);
+            Yi.max(0.0);
             Yt += Yi;
         }
     }
 
     Y[inertIndex] = scalar(1) - Yt;
-    Y[inertIndex].clamp_min(0);
+    Y[inertIndex].max(0.0);
 }

applications/solvers/combustion/reactingFoam/pEqn.H

@@ -37,7 +37,7 @@ if (pimple.transonic())
             fvOptions(psi, p, rho.name())
         );
 
-        pEqn.solve(p.select(pimple.finalInnerIter()));
+        pEqn.solve(mesh.solver(p.select(pimple.finalInnerIter())));
 
         if (pimple.finalNonOrthogonalIter())
         {
@@ -72,7 +72,7 @@ else
             fvOptions(psi, p, rho.name())
         );
 
-        pEqn.solve(p.select(pimple.finalInnerIter()));
+        pEqn.solve(mesh.solver(p.select(pimple.finalInnerIter())));
 
         if (pimple.finalNonOrthogonalIter())
         {

applications/solvers/combustion/reactingFoam/pcEqn.H

@@ -49,7 +49,7 @@ if (pimple.transonic())
             fvOptions(psi, p, rho.name())
         );
 
-        pEqn.solve(p.select(pimple.finalInnerIter()));
+        pEqn.solve(mesh.solver(p.select(pimple.finalInnerIter())));
 
         if (pimple.finalNonOrthogonalIter())
         {
@@ -89,7 +89,7 @@ else
             fvOptions(psi, p, rho.name())
         );
 
-        pEqn.solve(p.select(pimple.finalInnerIter()));
+        pEqn.solve(mesh.solver(p.select(pimple.finalInnerIter())));
 
         if (pimple.finalNonOrthogonalIter())
         {

applications/solvers/combustion/reactingFoam/rhoReactingBuoyantFoam/pEqn.H

@@ -41,7 +41,7 @@ while (pimple.correctNonOrthogonal())
       - fvm::laplacian(rhorAUf, p_rgh)
     );
 
-    p_rghEqn.solve(p_rgh.select(pimple.finalInnerIter()));
+    p_rghEqn.solve(mesh.solver(p_rgh.select(pimple.finalInnerIter())));
 
     if (pimple.finalNonOrthogonalIter())
     {

applications/solvers/combustion/reactingFoam/setRDeltaT.H

@@ -6,7 +6,7 @@
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
     Copyright (C) 2013-2016 OpenFOAM Foundation
-    Copyright (C) 2020,2025 OpenCFD Ltd.
+    Copyright (C) 2020 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -57,23 +57,11 @@ License
     // (relative to reference value)
     scalar alphaY(pimpleDict.getOrDefault<scalar>("alphaY", 1.0));
 
-
-    // The old reciprocal time scale field, with any damping factor
-    tmp<volScalarField> rDeltaT0_damped;
-
-    // Calculate damped value before applying any other changes
-    if
-    (
-        rDeltaTDampingCoeff < 1
-     && runTime.timeIndex() > runTime.startTimeIndex() + 1
-    )
-    {
-        rDeltaT0_damped = (scalar(1) - rDeltaTDampingCoeff)*(rDeltaT);
-    }
-
-
     Info<< "Time scales min/max:" << endl;
 
+    // Cache old reciprocal time scale field
+    volScalarField rDeltaT0("rDeltaT0", rDeltaT);
+
     // Flow time scale
     {
         rDeltaT.ref() =
@@ -82,14 +70,12 @@ License
            /((2*maxCo)*mesh.V()*rho())
         );
 
-        // Limit the largest time scale (=> smallest reciprocal time)
-        rDeltaT.clamp_min(1/maxDeltaT);
-
-        auto limits = gMinMax(rDeltaT.primitiveField());
-        limits.reset(1/(limits.max()+VSMALL), 1/(limits.min()+VSMALL));
+        // Limit the largest time scale
+        rDeltaT.max(1/maxDeltaT);
 
         Info<< "    Flow        = "
-            << limits.min() << ", " << limits.max() << endl;
+            << 1/gMax(rDeltaT.primitiveField()) << ", "
+            << 1/gMin(rDeltaT.primitiveField()) << endl;
     }
 
     // Heat release rate time scale
@@ -100,13 +86,11 @@ License
             mag(Qdot)/(alphaTemp*rho*thermo.Cp()*T)
         );
 
-        rDeltaT.primitiveFieldRef().clamp_min(rDeltaTT);
-
-        auto limits = gMinMax(rDeltaTT.field());
-        limits.reset(1/(limits.max()+VSMALL), 1/(limits.min()+VSMALL));
-
         Info<< "    Temperature = "
-            << limits.min() << ", " << limits.max() << endl;
+            << 1/(gMax(rDeltaTT.field()) + VSMALL) << ", "
+            << 1/(gMin(rDeltaTT.field()) + VSMALL) << endl;
+
+        rDeltaT.ref() = max(rDeltaT(), rDeltaTT);
     }
 
     // Reaction rate time scale
@@ -154,13 +138,11 @@ License
 
         if (foundY)
         {
-            rDeltaT.primitiveFieldRef().clamp_min(rDeltaTY);
-
-            auto limits = gMinMax(rDeltaTY.field());
-            limits.reset(1/(limits.max()+VSMALL), 1/(limits.min()+VSMALL));
-
             Info<< "    Composition = "
-                << limits.min() << ", " << limits.max() << endl;
+                << 1/(gMax(rDeltaTY.field()) + VSMALL) << ", "
+                << 1/(gMin(rDeltaTY.field()) + VSMALL) << endl;
+
+            rDeltaT.ref() = max(rDeltaT(), rDeltaTY);
         }
         else
         {
@@ -179,22 +161,28 @@ License
         fvc::smooth(rDeltaT, rDeltaTSmoothingCoeff);
     }
 
-    // Limit rate of change of time scale (=> smallest reciprocal time)
+    // Limit rate of change of time scale
     // - reduce as much as required
     // - only increase at a fraction of old time scale
-    if (rDeltaT0_damped)
+    if
+    (
+        rDeltaTDampingCoeff < 1
+     && runTime.timeIndex() > runTime.startTimeIndex() + 1
+    )
     {
-        rDeltaT.clamp_min(rDeltaT0_damped());
+        rDeltaT = max
+        (
+            rDeltaT,
+            (scalar(1) - rDeltaTDampingCoeff)*rDeltaT0
+        );
     }
 
     // Update tho boundary values of the reciprocal time-step
     rDeltaT.correctBoundaryConditions();
 
-    auto limits = gMinMax(rDeltaT.field());
-    limits.reset(1/(limits.max()+VSMALL), 1/(limits.min()+VSMALL));
-
     Info<< "    Overall     = "
-        << limits.min() << ", " << limits.max() << endl;
+        << 1/gMax(rDeltaT.primitiveField())
+        << ", " << 1/gMin(rDeltaT.primitiveField()) << endl;
 }
 
 

applications/solvers/compressible/rhoCentralFoam/BCs/T/smoluchowskiJumpTFvPatchScalarField.C

@@ -6,7 +6,7 @@
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
     Copyright (C) 2011-2015 OpenFOAM Foundation
-    Copyright (C) 2020,2025 OpenCFD Ltd.
+    Copyright (C) 2020 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -103,10 +103,16 @@ Foam::smoluchowskiJumpTFvPatchScalarField::smoluchowskiJumpTFvPatchScalarField
             << exit(FatalIOError);
     }
 
-    if (!this->readValueEntry(dict))
+    if (dict.found("value"))
     {
-        // Fallback: set to the internal field
-        this->extrapolateInternal();
+        fvPatchField<scalar>::operator=
+        (
+            scalarField("value", dict, p.size())
+        );
+    }
+    else
+    {
+        fvPatchField<scalar>::operator=(patchInternalField());
     }
 
     refValue() = *this;
@@ -159,10 +165,14 @@ void Foam::smoluchowskiJumpTFvPatchScalarField::updateCoeffs()
         return;
     }
 
-    const auto& pmu = patch().lookupPatchField<volScalarField>(muName_);
-    const auto& prho = patch().lookupPatchField<volScalarField>(rhoName_);
-    const auto& ppsi = patch().lookupPatchField<volScalarField>(psiName_);
-    const auto& pU = patch().lookupPatchField<volVectorField>(UName_);
+    const fvPatchScalarField& pmu =
+        patch().lookupPatchField<volScalarField, scalar>(muName_);
+    const fvPatchScalarField& prho =
+        patch().lookupPatchField<volScalarField, scalar>(rhoName_);
+    const fvPatchField<scalar>& ppsi =
+        patch().lookupPatchField<volScalarField, scalar>(psiName_);
+    const fvPatchVectorField& pU =
+        patch().lookupPatchField<volVectorField, vector>(UName_);
 
     // Prandtl number reading consistent with rhoCentralFoam
     const dictionary& thermophysicalProperties =
@@ -197,7 +207,7 @@ void Foam::smoluchowskiJumpTFvPatchScalarField::updateCoeffs()
 // Write
 void Foam::smoluchowskiJumpTFvPatchScalarField::write(Ostream& os) const
 {
-    fvPatchField<scalar>::write(os);
+    fvPatchScalarField::write(os);
 
     os.writeEntryIfDifferent<word>("U", "U", UName_);
     os.writeEntryIfDifferent<word>("rho", "rho", rhoName_);
@@ -207,7 +217,7 @@ void Foam::smoluchowskiJumpTFvPatchScalarField::write(Ostream& os) const
     os.writeEntry("accommodationCoeff", accommodationCoeff_);
     Twall_.writeEntry("Twall", os);
     os.writeEntry("gamma", gamma_);
-    fvPatchField<scalar>::writeValueEntry(os);
+    writeEntry("value", os);
 }
 
 

applications/solvers/compressible/rhoCentralFoam/BCs/T/smoluchowskiJumpTFvPatchScalarField.H

@@ -110,6 +110,15 @@ public:
             const fvPatchFieldMapper&
         );
 
+        //- Construct and return a clone
+        virtual tmp<fvPatchScalarField> clone() const
+        {
+            return tmp<fvPatchScalarField>
+            (
+                new smoluchowskiJumpTFvPatchScalarField(*this)
+            );
+        }
+
         //- Construct as copy setting internal field reference
         smoluchowskiJumpTFvPatchScalarField
         (
@@ -117,22 +126,18 @@ public:
             const DimensionedField<scalar, volMesh>&
         );
 
-        //- Return a clone
-        virtual tmp<fvPatchField<scalar>> clone() const
-        {
-            return fvPatchField<scalar>::Clone(*this);
-        }
-
-        //- Clone with an internal field reference
-        virtual tmp<fvPatchField<scalar>> clone
+        //- Construct and return a clone setting internal field reference
+        virtual tmp<fvPatchScalarField> clone
         (
             const DimensionedField<scalar, volMesh>& iF
         ) const
         {
-            return fvPatchField<scalar>::Clone(*this, iF);
+            return tmp<fvPatchScalarField>
+            (
+                new smoluchowskiJumpTFvPatchScalarField(*this, iF)
+            );
         }
 
-
         // Mapping functions
 
             //- Map (and resize as needed) from self given a mapping object

applications/solvers/compressible/rhoCentralFoam/BCs/U/maxwellSlipUFvPatchVectorField.C

@@ -105,15 +105,18 @@ Foam::maxwellSlipUFvPatchVectorField::maxwellSlipUFvPatchVectorField
             << exit(FatalIOError);
     }
 
-    if (this->readValueEntry(dict))
+    if (dict.found("value"))
     {
-        const auto* hasRefValue = dict.findEntry("refValue", keyType::LITERAL);
-        const auto* hasFrac = dict.findEntry("valueFraction", keyType::LITERAL);
+        fvPatchField<vector>::operator=
+        (
+            vectorField("value", dict, p.size())
+        );
 
-        if (hasRefValue && hasFrac)
+        if (dict.found("refValue") && dict.found("valueFraction"))
         {
-            this->refValue().assign(*hasRefValue, p.size());
-            this->valueFraction().assign(*hasFrac, p.size());
+            this->refValue() = vectorField("refValue", dict, p.size());
+            this->valueFraction() =
+                scalarField("valueFraction", dict, p.size());
         }
         else
         {
@@ -152,9 +155,12 @@ void Foam::maxwellSlipUFvPatchVectorField::updateCoeffs()
         return;
     }
 
-    const auto& pmu = patch().lookupPatchField<volScalarField>(muName_);
-    const auto& prho = patch().lookupPatchField<volScalarField>(rhoName_);
-    const auto& ppsi = patch().lookupPatchField<volScalarField>(psiName_);
+    const fvPatchScalarField& pmu =
+        patch().lookupPatchField<volScalarField, scalar>(muName_);
+    const fvPatchScalarField& prho =
+        patch().lookupPatchField<volScalarField, scalar>(rhoName_);
+    const fvPatchField<scalar>& ppsi =
+        patch().lookupPatchField<volScalarField, scalar>(psiName_);
 
     Field<scalar> C1
     (
@@ -181,8 +187,8 @@ void Foam::maxwellSlipUFvPatchVectorField::updateCoeffs()
 
     if (curvature_)
     {
-        const auto& ptauMC =
-            patch().lookupPatchField<volTensorField>(tauMCName_);
+        const fvPatchTensorField& ptauMC =
+            patch().lookupPatchField<volTensorField, tensor>(tauMCName_);
         vectorField n(patch().nf());
 
         refValue() -= C1/prho*transform(I - n*n, (n & ptauMC));
@@ -194,7 +200,7 @@ void Foam::maxwellSlipUFvPatchVectorField::updateCoeffs()
 
 void Foam::maxwellSlipUFvPatchVectorField::write(Ostream& os) const
 {
-    fvPatchField<vector>::write(os);
+    fvPatchVectorField::write(os);
     os.writeEntryIfDifferent<word>("T", "T", TName_);
     os.writeEntryIfDifferent<word>("rho", "rho", rhoName_);
     os.writeEntryIfDifferent<word>("psi", "thermo:psi", psiName_);
@@ -209,7 +215,7 @@ void Foam::maxwellSlipUFvPatchVectorField::write(Ostream& os) const
     refValue().writeEntry("refValue", os);
     valueFraction().writeEntry("valueFraction", os);
 
-    fvPatchField<vector>::writeValueEntry(os);
+    writeEntry("value", os);
 }
 
 

applications/solvers/compressible/rhoCentralFoam/BCs/U/maxwellSlipUFvPatchVectorField.H

@@ -118,6 +118,15 @@ public:
             const fvPatchFieldMapper&
         );
 
+        //- Construct and return a clone
+        virtual tmp<fvPatchVectorField> clone() const
+        {
+            return tmp<fvPatchVectorField>
+            (
+                new maxwellSlipUFvPatchVectorField(*this)
+            );
+        }
+
         //- Construct as copy setting internal field reference
         maxwellSlipUFvPatchVectorField
         (
@@ -125,19 +134,16 @@ public:
             const DimensionedField<vector, volMesh>&
         );
 
-        //- Return a clone
-        virtual tmp<fvPatchField<vector>> clone() const
-        {
-            return fvPatchField<vector>::Clone(*this);
-        }
-
-        //- Clone with an internal field reference
-        virtual tmp<fvPatchField<vector>> clone
+        //- Construct and return a clone setting internal field reference
+        virtual tmp<fvPatchVectorField> clone
         (
             const DimensionedField<vector, volMesh>& iF
         ) const
         {
-            return fvPatchField<vector>::Clone(*this, iF);
+            return tmp<fvPatchVectorField>
+            (
+                new maxwellSlipUFvPatchVectorField(*this, iF)
+            );
         }
 
 

applications/solvers/compressible/rhoCentralFoam/BCs/rho/fixedRhoFvPatchScalarField.C

@@ -104,8 +104,11 @@ void Foam::fixedRhoFvPatchScalarField::updateCoeffs()
         return;
     }
 
-    const auto& psip = patch().lookupPatchField<volScalarField>(psiName_);
-    const auto& pp = patch().lookupPatchField<volScalarField>(pName_);
+    const fvPatchField<scalar>& psip =
+        patch().lookupPatchField<volScalarField, scalar>(psiName_);
+
+    const fvPatchField<scalar>& pp =
+        patch().lookupPatchField<volScalarField, scalar>(pName_);
 
     operator==(psip*pp);
 
@@ -115,10 +118,11 @@ void Foam::fixedRhoFvPatchScalarField::updateCoeffs()
 
 void Foam::fixedRhoFvPatchScalarField::write(Ostream& os) const
 {
-    fvPatchField<scalar>::write(os);
+    fvPatchScalarField::write(os);
+
     os.writeEntryIfDifferent<word>("p", "p", pName_);
     os.writeEntryIfDifferent<word>("psi", "thermo:psi", psiName_);
-    fvPatchField<scalar>::writeValueEntry(os);
+    writeEntry("value", os);
 }
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

applications/solvers/compressible/rhoCentralFoam/BCs/rho/fixedRhoFvPatchScalarField.H

@@ -135,6 +135,15 @@ public:
             const fixedRhoFvPatchScalarField&
         );
 
+        //- Construct and return a clone
+        virtual tmp<fvPatchScalarField> clone() const
+        {
+            return tmp<fvPatchScalarField>
+            (
+                new fixedRhoFvPatchScalarField(*this)
+            );
+        }
+
         //- Construct as copy setting internal field reference
         fixedRhoFvPatchScalarField
         (
@@ -142,19 +151,16 @@ public:
             const DimensionedField<scalar, volMesh>&
         );
 
-        //- Return a clone
-        virtual tmp<fvPatchField<scalar>> clone() const
-        {
-            return fvPatchField<scalar>::Clone(*this);
-        }
-
-        //- Clone with an internal field reference
-        virtual tmp<fvPatchField<scalar>> clone
+        //- Construct and return a clone setting internal field reference
+        virtual tmp<fvPatchScalarField> clone
         (
             const DimensionedField<scalar, volMesh>& iF
         ) const
         {
-            return fvPatchField<scalar>::Clone(*this, iF);
+            return tmp<fvPatchScalarField>
+            (
+                new fixedRhoFvPatchScalarField(*this, iF)
+            );
         }
 
 

applications/solvers/compressible/rhoCentralFoam/createFieldRefs.H

@@ -1,9 +1,10 @@
 volScalarField& p = thermo.p();
 const volScalarField& T = thermo.T();
 const volScalarField& psi = thermo.psi();
+const volScalarField& mu = thermo.mu();
 
 bool inviscid(true);
-if (max(thermo.mu().cref().primitiveField()) > 0.0)
+if (max(mu.primitiveField()) > 0.0)
 {
     inviscid = false;
 }

applications/solvers/compressible/rhoCentralFoam/directionInterpolate.H

@@ -17,7 +17,7 @@ tmp<GeometricField<Type, fvsPatchField, surfaceMesh>> interpolate
             vf,
             dir,
             "reconstruct("
-          + (reconFieldName.empty() ? vf.name() : reconFieldName)
+          + (reconFieldName != word::null ? reconFieldName : vf.name())
           + ')'
         )
     );

applications/solvers/compressible/rhoCentralFoam/setRDeltaT.H

@@ -23,11 +23,7 @@
 
     fvc::smooth(rDeltaT, rDeltaTSmoothingCoeff);
 
-    {
-        auto limits = gMinMax(rDeltaT.primitiveField());
-        limits.reset(1/(limits.max()+VSMALL), 1/(limits.min()+VSMALL));
-
-        Info<< "Flow time scale min/max = "
-            << limits.min() << ", " << limits.max() << endl;
-    }
+    Info<< "Flow time scale min/max = "
+        << gMin(1/rDeltaT.primitiveField())
+        << ", " << gMax(1/rDeltaT.primitiveField()) << endl;
 }

applications/solvers/compressible/rhoPimpleAdiabaticFoam/pEqn.H

@@ -63,7 +63,7 @@
                 fvOptions(psi, p, rho.name())
             );
 
-            pEqn.solve(p.select(pimple.finalInnerIter()));
+            pEqn.solve(mesh.solver(p.select(pimple.finalInnerIter())));
 
             // Rhie & Chow interpolation (part 2)
             if (pimple.finalNonOrthogonalIter())

applications/solvers/compressible/rhoPimpleFoam/EEqn.H

@@ -20,11 +20,6 @@
         fvOptions(rho, he)
     );
 
-    if (MRF.active())
-    {
-        EEqn += fvc::div(MRF.phi(), p);
-    }
-
     EEqn.relax();
 
     fvOptions.constrain(EEqn);

applications/solvers/compressible/rhoPimpleFoam/Make/options

@@ -9,7 +9,7 @@ EXE_INC = \
     -I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \
     -I$(LIB_SRC)/TurbulenceModels/turbulenceModels/lnInclude \
     -I$(LIB_SRC)/TurbulenceModels/compressible/lnInclude \
-    -I$(LIB_SRC)/regionFaModels/lnInclude
+    -I$(LIB_SRC)/regionFaModels\lnInclude
 
 EXE_LIBS = \
     -lfiniteVolume \

applications/solvers/compressible/rhoPimpleFoam/overRhoPimpleDyMFoam/correctPhi.H

@@ -29,7 +29,7 @@ if (mesh.changing())
     wordList pcorrTypes
     (
         p.boundaryField().size(),
-        fvPatchFieldBase::zeroGradientType()
+        zeroGradientFvPatchScalarField::typeName
     );
 
     // Set BCs of pcorr to fixed-value for patches at which p is fixed
@@ -72,7 +72,7 @@ if (mesh.changing())
             divrhoU()
         );
 
-        pcorrEqn.solve(pcorr.select(pimple.finalInnerIter()));
+        pcorrEqn.solve(mesh.solver(pcorr.select(pimple.finalInnerIter())));
         //Bypass virtual layer
         //mesh.fvMesh::solve(pcorrEqn, d);
 

applications/solvers/compressible/rhoPimpleFoam/overRhoPimpleDyMFoam/pEqn.H

@@ -56,7 +56,7 @@ if (pimple.transonic())
         // Relax the pressure equation to ensure diagonal-dominance
         pEqn.relax();
 
-        pEqn.solve(p.select(pimple.finalInnerIter()));
+        pEqn.solve(mesh.solver(p.select(pimple.finalInnerIter())));
 
         if (pimple.finalNonOrthogonalIter())
         {
@@ -78,7 +78,7 @@ else
     {
         fvScalarMatrix pEqn(pDDtEqn - fvm::laplacian(rhorAUf, p));
 
-        pEqn.solve(p.select(pimple.finalInnerIter()));
+        pEqn.solve(mesh.solver(p.select(pimple.finalInnerIter())));
 
         if (pimple.finalNonOrthogonalIter())
         {

applications/solvers/compressible/rhoPimpleFoam/pEqn.H

@@ -54,7 +54,7 @@ if (pimple.transonic())
         // Relax the pressure equation to ensure diagonal-dominance
         pEqn.relax();
 
-        pEqn.solve(p.select(pimple.finalInnerIter()));
+        pEqn.solve(mesh.solver(p.select(pimple.finalInnerIter())));
 
         if (pimple.finalNonOrthogonalIter())
         {
@@ -76,7 +76,7 @@ else
     {
         fvScalarMatrix pEqn(pDDtEqn - fvm::laplacian(rhorAUf, p));
 
-        pEqn.solve(p.select(pimple.finalInnerIter()));
+        pEqn.solve(mesh.solver(p.select(pimple.finalInnerIter())));
 
         if (pimple.finalNonOrthogonalIter())
         {

applications/solvers/compressible/rhoPimpleFoam/pcEqn.H

@@ -65,7 +65,7 @@ if (pimple.transonic())
         // Relax the pressure equation to ensure diagonal-dominance
         pEqn.relax();
 
-        pEqn.solve(p.select(pimple.finalInnerIter()));
+        pEqn.solve(mesh.solver(p.select(pimple.finalInnerIter())));
 
         if (pimple.finalNonOrthogonalIter())
         {
@@ -90,7 +90,7 @@ else
     {
         fvScalarMatrix pEqn(pDDtEqn - fvm::laplacian(rhorAtU, p));
 
-        pEqn.solve(p.select(pimple.finalInnerIter()));
+        pEqn.solve(mesh.solver(p.select(pimple.finalInnerIter())));
 
         if (pimple.finalNonOrthogonalIter())
         {

applications/solvers/compressible/rhoPimpleFoam/setRDeltaT.H

@@ -52,26 +52,18 @@
     // Update the boundary values of the reciprocal time-step
     rDeltaT.correctBoundaryConditions();
 
-    {
-        auto limits = gMinMax(rDeltaT.primitiveField());
-        limits.reset(1/(limits.max()+VSMALL), 1/(limits.min()+VSMALL));
-
-        Info<< "Flow time scale min/max = "
-            << limits.min() << ", " << limits.max() << endl;
-    }
+    Info<< "Flow time scale min/max = "
+        << gMin(1/rDeltaT.primitiveField())
+        << ", " << gMax(1/rDeltaT.primitiveField()) << endl;
 
     if (rDeltaTSmoothingCoeff < 1.0)
     {
         fvc::smooth(rDeltaT, rDeltaTSmoothingCoeff);
     }
 
-    {
-        auto limits = gMinMax(rDeltaT.primitiveField());
-        limits.reset(1/(limits.max()+VSMALL), 1/(limits.min()+VSMALL));
-
-        Info<< "Smoothed flow time scale min/max = "
-            << limits.min() << ", " << limits.max() << endl;
-    }
+    Info<< "Smoothed flow time scale min/max = "
+        << gMin(1/rDeltaT.primitiveField())
+        << ", " << gMax(1/rDeltaT.primitiveField()) << endl;
 
     // Limit rate of change of time scale
     // - reduce as much as required
@@ -86,10 +78,8 @@
             rDeltaT0
            *max(rDeltaT/rDeltaT0, scalar(1) - rDeltaTDampingCoeff);
 
-        auto limits = gMinMax(rDeltaT.primitiveField());
-        limits.reset(1/(limits.max()+VSMALL), 1/(limits.min()+VSMALL));
-
         Info<< "Damped flow time scale min/max = "
-            << limits.min() << ", " << limits.max() << endl;
+            << gMin(1/rDeltaT.primitiveField())
+            << ", " << gMax(1/rDeltaT.primitiveField()) << endl;
     }
 }

applications/solvers/compressible/rhoSimpleFoam/EEqn.H

@@ -14,11 +14,6 @@
         fvOptions(rho, he)
     );
 
-    if (MRF.active())
-    {
-        EEqn += fvc::div(MRF.phi(), p);
-    }
-
     EEqn.relax();
 
     fvOptions.constrain(EEqn);

applications/solvers/compressible/rhoSimpleFoam/Make/options

@@ -7,7 +7,7 @@ EXE_INC = \
     -I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \
     -I$(LIB_SRC)/TurbulenceModels/turbulenceModels/lnInclude \
     -I$(LIB_SRC)/TurbulenceModels/compressible/lnInclude \
-    -I$(LIB_SRC)/regionFaModels/lnInclude
+    -I$(LIB_SRC)/regionFaModels\lnInclude
 
 EXE_LIBS = \
     -lfiniteVolume \

applications/solvers/compressible/sonicFoam/EEqn.H

@@ -9,11 +9,6 @@
         fvOptions(rho, e)
     );
 
-    if (MRF.active())
-    {
-        EEqn += fvc::div(MRF.phi(), p);
-    }
-
     EEqn.relax();
 
     fvOptions.constrain(EEqn);

applications/solvers/electromagnetics/mhdFoam/mhdFoam.C

@@ -127,7 +127,7 @@ int main(int argc, char *argv[])
                     );
 
                     pEqn.setReference(pRefCell, pRefValue);
-                    pEqn.solve(p.select(piso.finalInnerIter()));
+                    pEqn.solve(mesh.solver(p.select(piso.finalInnerIter())));
 
                     if (piso.finalNonOrthogonalIter())
                     {
@@ -167,7 +167,7 @@ int main(int argc, char *argv[])
                     fvm::laplacian(rABf, pB) == fvc::div(phiB)
                 );
 
-                pBEqn.solve(pB.select(bpiso.finalInnerIter()));
+                pBEqn.solve(mesh.solver(pB.select(bpiso.finalInnerIter())));
 
                 if (bpiso.finalNonOrthogonalIter())
                 {

applications/solvers/finiteArea/liquidFilmFoam/capillaryCourantNo.H

@@ -7,7 +7,7 @@
             *mag(aMesh.edgeInterpolation::deltaCoeffs())
             /rhol
         )
-    ).value()*runTime.deltaTValue();
+    ).value()*runTime.deltaT().value();
 
     Info<< "Max Capillary Courant Number = " << CoNumSigma << '\n' << endl;
 }

applications/solvers/finiteArea/liquidFilmFoam/createFaFields.H

@@ -5,7 +5,7 @@
         (
             "h",
             runTime.timeName(),
-            aMesh.thisDb(),
+            mesh,
             IOobject::MUST_READ,
             IOobject::AUTO_WRITE
         ),
@@ -20,7 +20,7 @@
         (
             "Us",
             runTime.timeName(),
-            aMesh.thisDb(),
+            mesh,
             IOobject::MUST_READ,
             IOobject::AUTO_WRITE
         ),
@@ -34,7 +34,7 @@
         (
             "phis",
             runTime.timeName(),
-            aMesh.thisDb(),
+            mesh,
             IOobject::READ_IF_PRESENT,
             IOobject::AUTO_WRITE
         ),
@@ -48,7 +48,7 @@
         (
             "phi2s",
             runTime.timeName(),
-            aMesh.thisDb(),
+            mesh,
             IOobject::READ_IF_PRESENT,
             IOobject::AUTO_WRITE
         ),
@@ -67,7 +67,7 @@
         (
             "Sm",
             runTime.timeName(),
-            aMesh.thisDb(),
+            mesh,
             IOobject::NO_READ,
             IOobject::NO_WRITE
         ),
@@ -82,7 +82,7 @@
         (
             "Sd",
             runTime.timeName(),
-            aMesh.thisDb(),
+            mesh,
             IOobject::NO_READ,
             IOobject::NO_WRITE
         ),
@@ -96,7 +96,7 @@
         (
             "Sg",
             runTime.timeName(),
-            aMesh.thisDb(),
+            mesh,
             IOobject::NO_READ,
             IOobject::NO_WRITE
         ),
@@ -112,7 +112,7 @@
         (
             "ps",
             runTime.timeName(),
-            aMesh.thisDb(),
+            mesh,
             IOobject::NO_READ,
             IOobject::AUTO_WRITE
         ),
@@ -134,7 +134,7 @@
         (
             "manningField",
             runTime.timeName(),
-            aMesh.thisDb(),
+            mesh,
             IOobject::MUST_READ,
             IOobject::AUTO_WRITE
         ),
@@ -147,7 +147,7 @@
         (
             "frictionFactor",
             runTime.timeName(),
-            aMesh.thisDb(),
+            mesh,
             IOobject::NO_READ,
             IOobject::NO_WRITE
         ),

applications/solvers/finiteArea/liquidFilmFoam/createFvFields.H

@@ -7,7 +7,7 @@ volVectorField U
     (
         "U",
         runTime.timeName(),
-        mesh.thisDb(),
+        mesh,
         IOobject::NO_READ,
         IOobject::AUTO_WRITE
     ),
@@ -22,7 +22,7 @@ volScalarField H
     (
         "H",
         runTime.timeName(),
-        mesh.thisDb(),
+        mesh,
         IOobject::NO_READ,
         IOobject::AUTO_WRITE
     ),

applications/solvers/finiteArea/liquidFilmFoam/liquidFilmFoam.C

@@ -87,13 +87,7 @@ int main(int argc, char *argv[])
             (
                 fam::ddt(h, Us)
               + fam::div(phi2s, Us)
-              + fam::Sp
-                (
-                    0.0125
-                   *frictionFactor.internalField()
-                   *mag(Us.internalField()),
-                    Us
-                )
+              + fam::Sp(0.0125*frictionFactor*mag(Us), Us)
              ==
                 Gs*h
               - fam::Sp(Sd, Us)

applications/solvers/finiteArea/liquidFilmFoam/surfaceCourantNo.H

@@ -47,10 +47,10 @@ if (aMesh.nInternalEdges())
     );
 
     CoNum = max(SfUfbyDelta/aMesh.magLe())
-        .value()*runTime.deltaTValue();
+        .value()*runTime.deltaT().value();
 
     meanCoNum = (sum(SfUfbyDelta)/sum(aMesh.magLe()))
-        .value()*runTime.deltaTValue();
+        .value()*runTime.deltaT().value();
 
     velMag = max(mag(phis)/aMesh.magLe()).value();
 }

applications/solvers/finiteArea/sphereSurfactantFoam/createFaFields.H

@@ -5,7 +5,7 @@ areaScalarField Cs
     (
         "Cs",
         runTime.timeName(),
-        aMesh.thisDb(),
+        mesh,
         IOobject::MUST_READ,
         IOobject::AUTO_WRITE
     ),
@@ -26,7 +26,7 @@ areaVectorField Us
     (
         "Us",
         runTime.timeName(),
-        aMesh.thisDb(),
+        mesh,
         IOobject::NO_READ,
         IOobject::NO_WRITE
     ),
@@ -47,7 +47,6 @@ forAll(Us, faceI)
     Us[faceI].z() =
         Uinf.value()*0.25*R[faceI].x()*R[faceI].z()/sqr(mag(R[faceI]));
 }
-Us.boundaryFieldRef().evaluateCoupled<coupledFaPatch>();
 
 Us -= aMesh.faceAreaNormals()*(aMesh.faceAreaNormals() & Us);
 
@@ -58,7 +57,7 @@ edgeScalarField phis
     (
         "phis",
         runTime.timeName(),
-        aMesh.thisDb(),
+        mesh,
         IOobject::NO_READ,
         IOobject::NO_WRITE
     ),

applications/solvers/finiteArea/sphereSurfactantFoam/createFaMesh.H

@@ -0,0 +1,2 @@
+    // Create Finite Area mesh
+    faMesh aMesh(mesh);

applications/solvers/finiteArea/sphereSurfactantFoam/createVolFields.H

@@ -7,7 +7,7 @@
         (
             "Cvf",
             runTime.timeName(),
-            mesh.thisDb(),
+            mesh,
             IOobject::NO_READ,
             IOobject::AUTO_WRITE
         ),
@@ -24,7 +24,7 @@
         (
             "U",
             runTime.timeName(),
-            mesh.thisDb(),
+            mesh,
             IOobject::NO_READ,
             IOobject::AUTO_WRITE
         ),

applications/solvers/finiteArea/surfactantFoam/createFaFields.H

@@ -5,7 +5,7 @@ areaScalarField Cs
     (
         "Cs",
         runTime.timeName(),
-        aMesh.thisDb(),
+        mesh,
         IOobject::MUST_READ,
         IOobject::AUTO_WRITE
     ),
@@ -37,7 +37,7 @@ areaVectorField Us
     (
         "Us",
         runTime.timeName(),
-        aMesh.thisDb(),
+        mesh,
         IOobject::MUST_READ,
         IOobject::NO_WRITE
     ),
@@ -51,7 +51,7 @@ edgeScalarField phis
     (
         "phis",
         runTime.timeName(),
-        aMesh.thisDb(),
+        mesh,
         IOobject::NO_READ,
         IOobject::NO_WRITE
     ),

applications/solvers/finiteArea/surfactantFoam/createFaMesh.H

@@ -0,0 +1,2 @@
+    // Create Finite Area mesh
+    faMesh aMesh(mesh);

applications/solvers/finiteArea/surfactantFoam/createVolFields.H

@@ -7,7 +7,7 @@
         (
             "Cvf",
             runTime.timeName(),
-            mesh.thisDb(),
+            mesh,
             IOobject::NO_READ,
             IOobject::AUTO_WRITE
         ),
@@ -24,7 +24,7 @@
         (
             "U",
             runTime.timeName(),
-            mesh.thisDb(),
+            mesh,
             IOobject::NO_READ,
             IOobject::AUTO_WRITE
         ),

applications/solvers/heatTransfer/buoyantBoussinesqPimpleFoam/pEqn.H

@@ -27,7 +27,7 @@
 
         p_rghEqn.setReference(pRefCell, getRefCellValue(p_rgh, pRefCell));
 
-        p_rghEqn.solve(p_rgh.select(pimple.finalInnerIter()));
+        p_rghEqn.solve(mesh.solver(p_rgh.select(pimple.finalInnerIter())));
 
         if (pimple.finalNonOrthogonalIter())
         {

applications/solvers/heatTransfer/buoyantPimpleFoam/Make/options

@@ -10,7 +10,7 @@ EXE_INC = \
     -I$(LIB_SRC)/TurbulenceModels/compressible/lnInclude \
     -I$(LIB_SRC)/dynamicMesh/lnInclude \
     -I$(LIB_SRC)/dynamicFvMesh/lnInclude \
-    -I$(LIB_SRC)/regionFaModels/lnInclude
+    -I$(LIB_SRC)/regionFaModels\lnInclude
 
 EXE_LIBS = \
     -lfiniteVolume \

applications/solvers/heatTransfer/buoyantPimpleFoam/overBuoyantPimpleDyMFoam/correctPhi.H

@@ -29,7 +29,7 @@ if (mesh.changing())
     wordList pcorrTypes
     (
         p.boundaryField().size(),
-        fvPatchFieldBase::zeroGradientType()
+        zeroGradientFvPatchScalarField::typeName
     );
 
     // Set BCs of pcorr to fixed-value for patches at which p is fixed
@@ -72,7 +72,7 @@ if (mesh.changing())
             divrhoU()
         );
 
-        //pcorrEqn.solve(pcorr.select(pimple.finalInnerIter()));
+        //pcorrEqn.solve(mesh.solver(pcorr.select(pimple.finalInnerIter())));
         //Bypass virtual layer
         const dictionary& d = mesh.solver
             (

applications/solvers/heatTransfer/buoyantPimpleFoam/overBuoyantPimpleDyMFoam/pEqn.H

@@ -50,7 +50,7 @@ while (pimple.correctNonOrthogonal())
       - fvm::laplacian(rhorAUf, p_rgh)
     );
 
-    p_rghEqn.solve(p_rgh.select(pimple.finalInnerIter()));
+    p_rghEqn.solve(mesh.solver(p_rgh.select(pimple.finalInnerIter())));
 
     if (pimple.finalNonOrthogonalIter())
     {

applications/solvers/heatTransfer/buoyantPimpleFoam/pEqn.H

@@ -52,7 +52,7 @@ while (pimple.correctNonOrthogonal())
         compressible ? getRefCellValue(p_rgh, pRefCell) : pRefValue
     );
 
-    p_rghEqn.solve(p_rgh.select(pimple.finalInnerIter()));
+    p_rghEqn.solve(mesh.solver(p_rgh.select(pimple.finalInnerIter())));
 
     if (pimple.finalNonOrthogonalIter())
     {

applications/solvers/heatTransfer/buoyantSimpleFoam/Make/options

@@ -7,7 +7,7 @@ EXE_INC = \
     -I$(LIB_SRC)/thermophysicalModels/radiation/lnInclude \
     -I$(LIB_SRC)/TurbulenceModels/turbulenceModels/lnInclude \
     -I$(LIB_SRC)/TurbulenceModels/compressible/lnInclude \
-    -I$(LIB_SRC)/regionFaModels/lnInclude
+    -I$(LIB_SRC)/regionFaModels\lnInclude
 
 EXE_LIBS = \
     -lfiniteVolume \

applications/solvers/heatTransfer/chtMultiRegionFoam/Make/options

@@ -19,7 +19,7 @@ EXE_INC = \
     -I$(LIB_SRC)/TurbulenceModels/compressible/lnInclude \
     -I$(LIB_SRC)/thermophysicalModels/radiation/lnInclude \
     -I$(LIB_SRC)/regionModels/regionModel/lnInclude \
-    -I$(LIB_SRC)/regionFaModels/lnInclude
+    -I$(LIB_SRC)/regionFaModels\lnInclude
 
 
 EXE_LIBS = \

applications/solvers/heatTransfer/chtMultiRegionFoam/chtMultiRegionSimpleFoam/fluid/compressibleMultiRegionCourantNo.H

@@ -1,7 +1,7 @@
     scalar CoNum = -GREAT;
     forAll(fluidRegions, regionI)
     {
-        CoNum = Foam::max
+        CoNum = max
         (
             compressibleCourantNo
             (

applications/solvers/heatTransfer/chtMultiRegionFoam/chtMultiRegionSimpleFoam/fluid/createFluidFields.H

@@ -108,7 +108,7 @@ forAll(fluidRegions, i)
                 IOobject::READ_IF_PRESENT,
                 IOobject::NO_WRITE
             ),
-            dimensionedScalar(word::null, dimLength, Zero)
+            dimensionedScalar("hRef", dimLength, Zero) // uses name
         )
     );
 

applications/solvers/heatTransfer/chtMultiRegionFoam/chtMultiRegionSimpleFoam/fluid/pEqn.H

@@ -78,8 +78,8 @@
     }
 
     rho = thermo.rho();
-
-    rho.clamp_range(rhoMin[i], rhoMax[i]);
+    rho = max(rho, rhoMin[i]);
+    rho = min(rho, rhoMax[i]);
     rho.relax();
 
     Info<< "Min/max rho:" << min(rho).value() << ' '

applications/solvers/heatTransfer/chtMultiRegionFoam/chtMultiRegionTwoPhaseEulerFoam/Make/files

@@ -1,5 +1,5 @@
 derivedFvPatchFields/turbulentTemperatureTwoPhaseRadCoupledMixed/turbulentTemperatureTwoPhaseRadCoupledMixedFvPatchScalarField.C
-solid/solidRegionDiffNo.C
+../solid/solidRegionDiffNo.C
 chtMultiRegionTwoPhaseEulerFoam.C
 
 EXE = $(FOAM_APPBIN)/chtMultiRegionTwoPhaseEulerFoam

applications/solvers/heatTransfer/chtMultiRegionFoam/chtMultiRegionTwoPhaseEulerFoam/derivedFvPatchFields/turbulentTemperatureTwoPhaseRadCoupledMixed/turbulentTemperatureTwoPhaseRadCoupledMixedFvPatchScalarField.C

@@ -88,29 +88,26 @@ kappa
 
         case mtLookup:
         {
+            if (mesh.foundObject<volScalarField>(kappaName_))
             {
-                const auto* ptr =
-                    mesh.cfindObject<volScalarField>(kappaName_);
-
-                if (ptr)
-                {
-                    return patch().patchField(*ptr);
-                }
+                return patch().lookupPatchField<volScalarField, scalar>
+                (
+                    kappaName_
+                );
             }
+            else if (mesh.foundObject<volSymmTensorField>(kappaName_))
             {
-                const auto* ptr =
-                    mesh.cfindObject<volSymmTensorField>(kappaName_);
+                const symmTensorField& KWall =
+                    patch().lookupPatchField<volSymmTensorField, scalar>
+                    (
+                        kappaName_
+                    );
 
-                if (ptr)
-                {
-                    const symmTensorField& KWall = patch().patchField(*ptr);
+                const vectorField n(patch().nf());
 
-                    const vectorField n(patch().nf());
-
-                    return n & KWall & n;
-                }
+                return n & KWall & n;
             }
-
+            else
             {
                 FatalErrorInFunction
                     << "Did not find field " << kappaName_
@@ -120,6 +117,9 @@ kappa
                     << " or volSymmTensorField."
                     << exit(FatalError);
             }
+
+
+
             break;
         }
 
@@ -131,8 +131,10 @@ kappa
                 mesh.lookupObject<phaseSystem>("phaseProperties")
             );
 
-            auto tkappaEff = tmp<scalarField>::New(patch().size(), Zero);
-            auto& kappaEff = tkappaEff.ref();
+            tmp<scalarField> kappaEff
+            (
+                new scalarField(patch().size(), 0.0)
+            );
 
             forAll(fluid.phases(), phasei)
             {
@@ -140,10 +142,10 @@ kappa
 
                 const fvPatchScalarField& alpha = phase.boundaryField()[patchi];
 
-                kappaEff += alpha*phase.kappaEff(patchi)();
+                kappaEff.ref() += alpha*phase.kappaEff(patchi)();
             }
 
-            return tkappaEff;
+            return kappaEff;
 
             break;
         }
@@ -159,11 +161,9 @@ kappa
         }
     }
 
-    // Return zero-sized (not nullptr)
-    return tmp<scalarField>::New();
+    return scalarField(0);
 }
 
-
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 
@@ -243,12 +243,14 @@ turbulentTemperatureTwoPhaseRadCoupledMixedFvPatchScalarField
             << exit(FatalError);
     }
 
+    fvPatchScalarField::operator=(scalarField("value", dict, p.size()));
 
-    this->readValueEntry(dict, IOobjectOption::MUST_READ);
-
-    if (this->readMixedEntries(dict))
+    if (dict.found("refValue"))
     {
         // Full restart
+        refValue() = scalarField("refValue", dict, p.size());
+        refGrad() = scalarField("refGradient", dict, p.size());
+        valueFraction() = scalarField("valueFraction", dict, p.size());
     }
     else
     {
@@ -292,7 +294,8 @@ updateCoeffs()
 
     // Since we're inside initEvaluate/evaluate there might be processor
     // comms underway. Change the tag we use.
-    const int oldTag = UPstream::incrMsgType();
+    int oldTag = UPstream::msgType();
+    UPstream::msgType() = oldTag+1;
 
     // Get the coupling information from the mappedPatchBase
     const label patchi = patch().index();
@@ -305,11 +308,12 @@ updateCoeffs()
 
     scalarField& Tp = *this;
 
-    const auto& nbrField =
-        refCast
-        <
-            const turbulentTemperatureTwoPhaseRadCoupledMixedFvPatchScalarField
-        >(nbrPatch.lookupPatchField<volScalarField>(TnbrName_));
+    const turbulentTemperatureTwoPhaseRadCoupledMixedFvPatchScalarField&
+        nbrField = refCast
+            <const turbulentTemperatureTwoPhaseRadCoupledMixedFvPatchScalarField>
+            (
+                nbrPatch.lookupPatchField<volScalarField, scalar>(TnbrName_)
+            );
 
     // Swap to obtain full local values of neighbour internal field
     scalarField TcNbr(nbrField.patchInternalField());
@@ -326,13 +330,13 @@ updateCoeffs()
     scalarField qr(Tp.size(), 0.0);
     if (qrName_ != "none")
     {
-        qr = patch().lookupPatchField<volScalarField>(qrName_);
+        qr = patch().lookupPatchField<volScalarField, scalar>(qrName_);
     }
 
     scalarField qrNbr(Tp.size(), 0.0);
     if (qrNbrName_ != "none")
     {
-        qrNbr = nbrPatch.lookupPatchField<volScalarField>(qrNbrName_);
+        qrNbr = nbrPatch.lookupPatchField<volScalarField, scalar>(qrNbrName_);
         mpp.distribute(qrNbr);
     }
 
@@ -387,18 +391,15 @@ updateCoeffs()
         {
             scalar Q = gSum(kappa(Tp)*patch().magSf()*snGrad());
 
-            auto limits = gMinMax(Tp);
-            auto avg = gAverage(Tp);
+                Info<< "T solid : " << nl << endl;
 
-            Info<< "T solid : " << nl << endl;
-
-            Info
-                << " heat transfer rate from solid:" << Q
-                << " walltemperature "
-                << " min:" << limits.min()
-                << " max:" << limits.max()
-                << " avg:" << avg << nl
-                << endl;
+                Info
+                    << " heat transfer rate from solid:" << Q
+                    << " walltemperature "
+                    << " min:" << gMin(Tp)
+                    << " max:" << gMax(Tp)
+                    << " avg:" << gAverage(Tp) << nl
+                    << endl;
         }
     }
     else if (regionType_ == fluid)
@@ -448,16 +449,10 @@ updateCoeffs()
             scalarField qLiq((Tp - Tc)*KdeltaLiq);
             scalarField qVap((Tp - Tv.patchInternalField())*KdeltaVap);
 
-            auto infoT = gMinMax(Tp);
-            auto avgT = gAverage(Tp);
-
-            auto infoLiq = gMinMax(qLiq);
-            auto infoVap = gMinMax(qVap);
-
             Info<< "T flow : " << nl << endl;
 
-            Info<< "  qLiq: " << infoLiq.min() << " - " << infoLiq.max() << nl
-                << "  qVap: " << infoVap.min() << " - " << infoVap.max() << nl;
+            Info<< "  qLiq: " << gMin(qLiq) << " - " << gMax(qLiq) << endl;
+            Info<< "  qVap: " << gMin(qVap) << " - " << gMax(qVap) << endl;
 
             scalar QLiq = gSum(qLiq*patch().magSf());
             scalar QVap = gSum(qVap*patch().magSf());
@@ -466,9 +461,9 @@ updateCoeffs()
             Info<<  " Heat transfer to Vap: " << QVap << endl;
 
             Info<< " walltemperature "
-                << " min:" << infoT.min()
-                << " max:" << infoT.max()
-                << " avg:" << avgT
+                << " min:" << gMin(Tp)
+                << " max:" << gMax(Tp)
+                << " avg:" << gAverage(Tp)
                 << endl;
         }
     }
@@ -479,9 +474,10 @@ updateCoeffs()
             << regionTypeNames_ << nl << exit(FatalError);
     }
 
-    UPstream::msgType(oldTag);  // Restore tag
-
     mixedFvPatchScalarField::updateCoeffs();
+
+    // Restore tag
+    UPstream::msgType() = oldTag;
 }
 
 
@@ -490,7 +486,7 @@ void turbulentTemperatureTwoPhaseRadCoupledMixedFvPatchScalarField::write
     Ostream& os
 ) const
 {
-    mixedFvPatchField<scalar>::write(os);
+    mixedFvPatchScalarField::write(os);
     os.writeEntry("kappaMethod", KMethodTypeNames_[method_]);
     os.writeEntryIfDifferent<word>("kappa","none", kappaName_);
 

applications/solvers/heatTransfer/chtMultiRegionFoam/chtMultiRegionTwoPhaseEulerFoam/derivedFvPatchFields/turbulentTemperatureTwoPhaseRadCoupledMixed/turbulentTemperatureTwoPhaseRadCoupledMixedFvPatchScalarField.H

@@ -196,6 +196,18 @@ public:
             const fvPatchFieldMapper&
         );
 
+        //- Construct and return a clone
+        virtual tmp<fvPatchScalarField> clone() const
+        {
+            return tmp<fvPatchScalarField>
+            (
+                new turbulentTemperatureTwoPhaseRadCoupledMixedFvPatchScalarField
+                (
+                    *this
+                )
+            );
+        }
+
         //- Construct as copy setting internal field reference
         turbulentTemperatureTwoPhaseRadCoupledMixedFvPatchScalarField
         (
@@ -203,19 +215,20 @@ public:
             const DimensionedField<scalar, volMesh>&
         );
 
-        //- Return a clone
-        virtual tmp<fvPatchField<scalar>> clone() const
-        {
-            return fvPatchField<scalar>::Clone(*this);
-        }
-
-        //- Clone with an internal field reference
-        virtual tmp<fvPatchField<scalar>> clone
+        //- Construct and return a clone setting internal field reference
+        virtual tmp<fvPatchScalarField> clone
         (
             const DimensionedField<scalar, volMesh>& iF
         ) const
         {
-            return fvPatchField<scalar>::Clone(*this, iF);
+            return tmp<fvPatchScalarField>
+            (
+                new turbulentTemperatureTwoPhaseRadCoupledMixedFvPatchScalarField
+                (
+                    *this,
+                    iF
+                )
+            );
         }
 
 

applications/solvers/heatTransfer/chtMultiRegionFoam/chtMultiRegionTwoPhaseEulerFoam/fluid/compressibleMultiRegionCourantNo.H

@@ -31,7 +31,7 @@
             );
 
 
-            scalar regionCoNum =
+            CoNum =
                 0.5*gMax
                 (
                     sumPhi/fluidRegions[regioni].V().field()
@@ -41,9 +41,9 @@
             (
                 fvc::surfaceSum(mag(phi1 - phi2))().primitiveField()
               / fluidRegions[regioni].V().field()
-            )*runTime.deltaTValue();
+            )*runTime.deltaTValue(),
 
-            CoNum = Foam::max(CoNum, Foam::max(regionCoNum, UrCoNum));
+            CoNum = max(UrCoNum, CoNum);
         }
     }
 

applications/solvers/heatTransfer/chtMultiRegionFoam/chtMultiRegionTwoPhaseEulerFoam/fluid/createFluidFields.H

@@ -221,7 +221,7 @@ forAll(fluidRegions, i)
                 IOobject::READ_IF_PRESENT,
                 IOobject::NO_WRITE
             ),
-            dimensionedScalar(word::null, dimLength, Zero)
+            dimensionedScalar("hRef", dimLength, Zero)
         )
     );
 

applications/solvers/heatTransfer/chtMultiRegionFoam/chtMultiRegionTwoPhaseEulerFoam/fluid/initContinuityErrs.H

@@ -13,11 +13,11 @@ forAll(cumulativeContErrIO, i)
                 "cumulativeContErr",
                 runTime.timeName(),
                 "uniform",
-                mesh.thisDb(),
+                mesh,
                 IOobject::READ_IF_PRESENT,
                 IOobject::AUTO_WRITE
             ),
-            dimensionedScalar(word::null, dimless, Zero)
+            dimensionedScalar(dimless, Zero)
         )
     );
 }

applications/solvers/heatTransfer/chtMultiRegionFoam/chtMultiRegionTwoPhaseEulerFoam/fluid/setRegionFluidFields.H

@@ -8,13 +8,11 @@
 
     volVectorField& U1 = phase1.URef();
     surfaceScalarField& phi1 = phase1.phiRef();
-    const tmp<surfaceScalarField> talphaPhi1 = phase1.alphaPhi();
-    const auto& alphaPhi1 = talphaPhi1();
+    const surfaceScalarField& alphaPhi1 = phase1.alphaPhi();
 
     volVectorField& U2 = phase2.URef();
     surfaceScalarField& phi2 = phase2.phiRef();
-    const tmp<surfaceScalarField> talphaPhi2 = phase2.alphaPhi();
-    const auto& alphaPhi2 = talphaPhi2();
+    const surfaceScalarField& alphaPhi2 = phase2.alphaPhi();
 
     surfaceScalarField& phi = fluid.phi();
 

applications/solvers/heatTransfer/chtMultiRegionFoam/chtMultiRegionTwoPhaseEulerFoam/fluid/solveFluid.H

@@ -1,6 +1,6 @@
 if (finalIter)
 {
-    mesh.data().setFinalIteration(true);
+    mesh.data::add("finalIteration", true);
 }
 
 if (frozenFlow)
@@ -35,5 +35,5 @@ else
 
 if (finalIter)
 {
-    mesh.data().setFinalIteration(false);
+    mesh.data::remove("finalIteration");
 }

applications/solvers/heatTransfer/chtMultiRegionFoam/chtMultiRegionTwoPhaseEulerFoam/solid/solidRegionDiffNo.C

@@ -1 +0,0 @@
-../../solid/solidRegionDiffNo.C

applications/solvers/heatTransfer/chtMultiRegionFoam/chtMultiRegionTwoPhaseEulerFoam/solid/solveSolid.H

@@ -1,6 +1,6 @@
 if (finalIter)
 {
-    mesh.data().setFinalIteration(true);
+    mesh.data::add("finalIteration", true);
 }
 
 {
@@ -22,7 +22,7 @@ if (finalIter)
 
         fvOptions.constrain(hEqn);
 
-        hEqn.solve(h.select(finalIter));
+        hEqn.solve(mesh.solver(h.select(finalIter)));
 
         fvOptions.correct(h);
     }
@@ -35,5 +35,5 @@ if (finalIter)
 
 if (finalIter)
 {
-    mesh.data().setFinalIteration(false);
+    mesh.data::remove("finalIteration");
 }

applications/solvers/heatTransfer/chtMultiRegionFoam/fluid/EEqn.H

@@ -33,7 +33,7 @@
     }
     else
     {
-        EEqn.solve(he.select(finalIter));
+        EEqn.solve(mesh.solver(he.select(finalIter)));
         fvOptions.correct(he);
 
         thermo.correct();

applications/solvers/heatTransfer/chtMultiRegionFoam/fluid/UEqn.H

@@ -28,7 +28,7 @@
                   - fvc::snGrad(p_rgh)
                 )*mesh.magSf()
             ),
-            U.select(finalIter)
+            mesh.solver(U.select(finalIter))
         );
 
         fvOptions.correct(U);

applications/solvers/heatTransfer/chtMultiRegionFoam/fluid/YEqn.H

@@ -44,11 +44,11 @@ if (Y.size())
 
             fvOptions.constrain(YiEqn);
 
-            YiEqn.solve("Yi");
+            YiEqn.solve(mesh.solver("Yi"));
 
             fvOptions.correct(Yi);
 
-            Yi.clamp_min(0);
+            Yi.max(0.0);
             Yt += Yi;
         }
     }
@@ -56,6 +56,6 @@ if (Y.size())
     if (Y.size())
     {
         Y[inertIndex] = scalar(1) - Yt;
-        Y[inertIndex].clamp_min(0);
+        Y[inertIndex].max(0.0);
     }
 }

applications/solvers/heatTransfer/chtMultiRegionFoam/fluid/compressibleMultiRegionCourantNo.H

@@ -2,7 +2,7 @@
 
     forAll(fluidRegions, regioni)
     {
-        CoNum = Foam::max
+        CoNum = max
         (
             compressibleCourantNo
             (
@@ -17,7 +17,7 @@
 /*
     forAll(porousFluidRegions, porousi)
     {
-        CoNum = Foam::max
+        CoNum = max
         (
             compressibleCourantNo
             (

applications/solvers/heatTransfer/chtMultiRegionFoam/fluid/createFluidFields.H

@@ -112,7 +112,7 @@ forAll(fluidRegions, i)
                 IOobject::READ_IF_PRESENT,
                 IOobject::NO_WRITE
             ),
-            dimensionedScalar(word::null, dimLength, Zero)
+            dimensionedScalar("hRef", dimLength, Zero) // uses name
         )
     );
 

applications/solvers/heatTransfer/chtMultiRegionFoam/fluid/initContinuityErrs.H

@@ -13,11 +13,11 @@ forAll(cumulativeContErrIO, i)
                 "cumulativeContErr",
                 runTime.timeName(),
                 "uniform",
-                mesh.thisDb(),
+                mesh,
                 IOobject::READ_IF_PRESENT,
                 IOobject::AUTO_WRITE
             ),
-            dimensionedScalar(word::null, dimless, Zero)
+            dimensionedScalar(dimless, Zero)
         )
     );
 }