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Author SHA1 Message Date
f7ee5bcb10 ENH: wallHeatFlux: refactor function object with model-based architecture
- introduce wallHeatFluxModel base class for extensible heat flux models
- add 'wall' model implementing original wallHeatFlux function object
- add 'gauge' model for heat-flux gauge measurements with custom temperature
  The gauge model enables simulation of heat-flux gauges at specified locations
  with configurable temperature, absorptivity, and emissivity properties.
- add support for convective and radiative heat flux calculations in gauge model
2025-10-23 12:38:00 +01:00
f2793f2ac8 ENH: atmBoundaryLayer: extend range of applicability of displacement height, d (#3451) 2025-10-17 16:44:27 +01:00
013dbb8248 BUG: Pstream: incorrect indexing. Fixes #3452 2025-10-16 11:52:12 +01:00
12 changed files with 1721 additions and 305 deletions

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@ -855,7 +855,7 @@ bool Foam::UPstream::finishedRequest(const label i)
// This allows MPI to progress behind the scenes if it wishes.
int flag = 0;
if (i < 0 || i >= PstreamGlobals::outstandingRequests_.size())
if (i >= 0 && i < PstreamGlobals::outstandingRequests_.size())
{
auto& request = PstreamGlobals::outstandingRequests_[i];

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@ -218,9 +218,11 @@ tmp<vectorField> atmBoundaryLayer::U(const vectorField& pCf) const
const scalar groundMin = zDir() & ppMin_;
// (YGCJ:Table 1, RH:Eq. 6, HW:Eq. 5)
scalarField zEff(max((zDir() & pCf) - groundMin - d + z0, z0));
scalarField Un
(
(Ustar(z0)/kappa_)*log(((zDir() & pCf) - groundMin - d + z0)/z0)
(Ustar(z0)/kappa_)*log(zEff/z0)
);
return flowDir()*Un;
@ -235,9 +237,9 @@ tmp<scalarField> atmBoundaryLayer::k(const vectorField& pCf) const
const scalar groundMin = zDir() & ppMin_;
// (YGCJ:Eq. 21; RH:Eq. 7, HW:Eq. 6 when C1=0 and C2=1)
return
sqr(Ustar(z0))/sqrt(Cmu_)
*sqrt(C1_*log(((zDir() & pCf) - groundMin - d + z0)/z0) + C2_);
scalarField zEff(max((zDir() & pCf) - groundMin - d + z0, z0));
return sqr(Ustar(z0))/sqrt(Cmu_)*sqrt(C1_*log(zEff/z0) + C2_);
}
@ -249,9 +251,9 @@ tmp<scalarField> atmBoundaryLayer::epsilon(const vectorField& pCf) const
const scalar groundMin = zDir() & ppMin_;
// (YGCJ:Eq. 22; RH:Eq. 8, HW:Eq. 7 when C1=0 and C2=1)
return
pow3(Ustar(z0))/(kappa_*((zDir() & pCf) - groundMin - d + z0))
*sqrt(C1_*log(((zDir() & pCf) - groundMin - d + z0)/z0) + C2_);
scalarField zEff(max((zDir() & pCf) - groundMin - d + z0, z0));
return pow3(Ustar(z0))/(kappa_*zEff)*sqrt(C1_*log(zEff/z0) + C2_);
}
@ -263,7 +265,9 @@ tmp<scalarField> atmBoundaryLayer::omega(const vectorField& pCf) const
const scalar groundMin = zDir() & ppMin_;
// (YGJ:Eq. 13)
return Ustar(z0)/(kappa_*sqrt(Cmu_)*((zDir() & pCf) - groundMin - d + z0));
scalarField zEff(max((zDir() & pCf) - groundMin - d + z0, z0));
return Ustar(z0)/(kappa_*sqrt(Cmu_)*zEff);
}

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@ -108,6 +108,10 @@ turbulenceFields/turbulenceFields.C
yPlus/yPlus.C
wallShearStress/wallShearStress.C
wallHeatFlux/wallHeatFlux.C
wallHeatFlux/wallHeatFluxModels/wallHeatFluxModel/wallHeatFluxModel.C
wallHeatFlux/wallHeatFluxModels/wallHeatFluxModel/wallHeatFluxModelNew.C
wallHeatFlux/wallHeatFluxModels/wall/wall.C
wallHeatFlux/wallHeatFluxModels/gauge/gauge.C
writeCellCentres/writeCellCentres.C
writeCellVolumes/writeCellVolumes.C

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@ -5,8 +5,7 @@
\\ / A nd | www.openfoam.com
\\/ M anipulation |
-------------------------------------------------------------------------------
Copyright (C) 2016-2017 OpenFOAM Foundation
Copyright (C) 2016-2025 OpenCFD Ltd.
Copyright (C) 2025 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
@ -27,14 +26,8 @@ License
\*---------------------------------------------------------------------------*/
#include "wallHeatFlux.H"
#include "turbulentFluidThermoModel.H"
#include "solidThermo.H"
#include "surfaceInterpolate.H"
#include "fvcSnGrad.H"
#include "wallPolyPatch.H"
#include "turbulentFluidThermoModel.H"
#include "wallHeatFluxModel.H"
#include "addToRunTimeSelectionTable.H"
#include "multiphaseInterSystem.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
@ -47,54 +40,6 @@ namespace functionObjects
}
}
// * * * * * * * * * * * * * Protected Member Functions * * * * * * * * * * //
void Foam::functionObjects::wallHeatFlux::writeFileHeader(Ostream& os) const
{
writeHeader(os, "Wall heat-flux");
writeCommented(os, "Time");
writeTabbed(os, "patch");
writeTabbed(os, "min");
writeTabbed(os, "max");
writeTabbed(os, "integral");
os << endl;
}
void Foam::functionObjects::wallHeatFlux::calcHeatFlux
(
const volScalarField& alpha,
const volScalarField& he,
volScalarField& wallHeatFlux
)
{
volScalarField::Boundary& wallHeatFluxBf = wallHeatFlux.boundaryFieldRef();
const volScalarField::Boundary& heBf = he.boundaryField();
const volScalarField::Boundary& alphaBf = alpha.boundaryField();
for (const label patchi : patchIDs_)
{
wallHeatFluxBf[patchi] = alphaBf[patchi]*heBf[patchi].snGrad();
}
const auto* qrPtr = cfindObject<volScalarField>(qrName_);
if (qrPtr)
{
const volScalarField::Boundary& radHeatFluxBf = qrPtr->boundaryField();
for (const label patchi : patchIDs_)
{
wallHeatFluxBf[patchi] -= radHeatFluxBf[patchi];
}
}
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::functionObjects::wallHeatFlux::wallHeatFlux
@ -105,32 +50,19 @@ Foam::functionObjects::wallHeatFlux::wallHeatFlux
)
:
fvMeshFunctionObject(name, runTime, dict),
writeFile(obr_, name, typeName, dict),
qrName_("qr")
qModelPtr_
(
wallHeatFluxModel::New
(
dict,
mesh_,
name,
scopedName(typeName),
*this
)
)
{
read(dict);
writeFileHeader(file());
volScalarField* wallHeatFluxPtr
(
new volScalarField
(
IOobject
(
scopedName(typeName),
mesh_.time().timeName(),
mesh_.thisDb(),
IOobjectOption::NO_READ,
IOobjectOption::NO_WRITE,
IOobjectOption::REGISTER
),
mesh_,
dimensionedScalar(dimMass/pow3(dimTime), Zero)
)
);
regIOobject::store(wallHeatFluxPtr);
}
@ -138,178 +70,26 @@ Foam::functionObjects::wallHeatFlux::wallHeatFlux
bool Foam::functionObjects::wallHeatFlux::read(const dictionary& dict)
{
const polyBoundaryMesh& pbm = mesh_.boundaryMesh();
fvMeshFunctionObject::read(dict);
writeFile::read(dict);
dict.readIfPresent("qr", qrName_);
wordRes patchNames;
labelHashSet patchSet;
if (dict.readIfPresent("patches", patchNames) && !patchNames.empty())
Log << type() << ' ' << name() << " read:" << endl;
if (!fvMeshFunctionObject::read(dict) || !qModelPtr_->read(dict))
{
patchSet = pbm.patchSet(patchNames);
return false;
}
labelHashSet allWalls(pbm.findPatchIDs<wallPolyPatch>());
Info<< type() << ' ' << name() << ':' << nl;
if (patchSet.empty())
{
patchIDs_ = allWalls.sortedToc();
Info<< " processing all (" << patchIDs_.size()
<< ") wall patches" << nl << endl;
}
else
{
allWalls &= patchSet;
patchSet -= allWalls;
patchIDs_ = allWalls.sortedToc();
if (!patchSet.empty())
{
WarningInFunction
<< "Requested wall heat-flux on ("
<< patchSet.size() << ") non-wall patches:" << nl;
for (const label patchi : patchSet.sortedToc())
{
Info<< " " << pbm[patchi].name() << nl;
}
Info<< nl;
}
Info<< " processing (" << patchIDs_.size()
<< ") wall patches:" << nl;
for (const label patchi : patchIDs_)
{
Info<< " " << pbm[patchi].name() << nl;
}
Info<< endl;
}
return true;
}
bool Foam::functionObjects::wallHeatFlux::execute()
{
auto& wallHeatFlux = lookupObjectRef<volScalarField>(scopedName(typeName));
if
(
foundObject<compressible::turbulenceModel>
(
turbulenceModel::propertiesName
)
)
{
const compressible::turbulenceModel& turbModel =
lookupObject<compressible::turbulenceModel>
(
turbulenceModel::propertiesName
);
calcHeatFlux
(
turbModel.alphaEff()(),
turbModel.transport().he(),
wallHeatFlux
);
}
else if (foundObject<fluidThermo>(fluidThermo::dictName))
{
const fluidThermo& thermo =
lookupObject<fluidThermo>(fluidThermo::dictName);
calcHeatFlux
(
thermo.alpha(),
thermo.he(),
wallHeatFlux
);
}
else if (foundObject<solidThermo>(solidThermo::dictName))
{
const solidThermo& thermo =
lookupObject<solidThermo>(solidThermo::dictName);
calcHeatFlux(thermo.alpha(), thermo.he(), wallHeatFlux);
}
else if
(
foundObject<multiphaseInterSystem>
(multiphaseInterSystem::phasePropertiesName)
)
{
const auto& thermo = lookupObject<multiphaseInterSystem>
(
multiphaseInterSystem::phasePropertiesName
);
calcHeatFlux(thermo.kappaEff()(), thermo.T(), wallHeatFlux);
}
else
{
FatalErrorInFunction
<< "Unable to find compressible turbulence model in the "
<< "database" << exit(FatalError);
}
const fvPatchList& patches = mesh_.boundary();
const surfaceScalarField::Boundary& magSf = mesh_.magSf().boundaryField();
for (const label patchi : patchIDs_)
{
const fvPatch& pp = patches[patchi];
const scalarField& hfp = wallHeatFlux.boundaryField()[patchi];
const MinMax<scalar> limits = gMinMax(hfp);
const scalar integralHfp = gWeightedSum(magSf[patchi], hfp);
if (Pstream::master())
{
writeCurrentTime(file());
file()
<< token::TAB << pp.name()
<< token::TAB << limits.min()
<< token::TAB << limits.max()
<< token::TAB << integralHfp
<< endl;
}
Log << " min/max/integ(" << pp.name() << ") = "
<< limits.min() << ", " << limits.max()
<< ", " << integralHfp << endl;
this->setResult("min(" + pp.name() + ")", limits.min());
this->setResult("max(" + pp.name() + ")", limits.max());
this->setResult("int(" + pp.name() + ")", integralHfp);
}
return true;
Log << type() << ' ' << name() << " execute:" << endl;
return qModelPtr_->execute();
}
bool Foam::functionObjects::wallHeatFlux::write()
{
const auto& wallHeatFlux =
lookupObject<volScalarField>(scopedName(typeName));
Log << type() << ' ' << name() << " write:" << nl
<< " writing field " << wallHeatFlux.name() << endl;
wallHeatFlux.write();
return true;
Log << type() << ' ' << name() << " write:" << endl;
return qModelPtr_->write();
}

View File

@ -5,8 +5,7 @@
\\ / A nd | www.openfoam.com
\\/ M anipulation |
-------------------------------------------------------------------------------
Copyright (C) 2016-2017 OpenFOAM Foundation
Copyright (C) 2016-2023 OpenCFD Ltd.
Copyright (C) 2025 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
@ -28,31 +27,47 @@ Class
Foam::functionObjects::wallHeatFlux
Group
grpForcesFunctionObjects
Description
Computes the wall-heat flux at selected wall patches.
\table
Operand | Type | Location
input | - | -
output file | dat | postProcessing/<FO>/<time>/field
output field | volScalarField (only boundaryField) <!--
--> | postProcessing/<FO>/<time>/outField
\endtable
This function object calculates the wall heat flux based on a custom model
defined in the dictionary. The model can be specified to compute the heat
flux according to user-defined criteria or equations.
Usage
Minimal example by using \c system/controlDict.functions:
\verbatim
wallHeatFluxFO
wallHeatFlux1
{
// Mandatory entries
type wallHeatFlux;
libs (fieldFunctionObjects);
// Optional entries
patches (<patch1> ... <patchN>); // (wall1 "(wall2|wall3)");
qr <word>;;
model <word>;
// Conditional entries
// Option-1: when 'model' is 'wall' - previous 'wallHeatFlux' state
// Optional entries
patches (<patch1> ... <patchN>); // (wall1 "(wall2|wall3)");
qr <word>;
// Option-2: when 'model' is 'gauge'
// Mandatory entries
patch <word>;
Tgauge <scalar>;
// Optional entries
absorptivity <scalar>;
emissivity <scalar>;
T <word>;
qin <word>;
alphat <word>;
convective <bool>;
radiative <bool>;
writeFields <bool>;
// Inherited entries
...
@ -64,31 +79,45 @@ Usage
Property | Description | Type | Reqd | Deflt
type | Type name: wallHeatFlux | word | yes | -
libs | Library name: fieldFunctionObjects | word | yes | -
model | Model name | word | no | wall
patches | Names of operand patches | wordList | no | all wall patches
qr | Name of radiative heat flux field | word | no | qr
patch | Name of the patch to probe | word | yes | -
Tgauge | Gauge temperature (K) | scalar | yes | -
absorptivity | Absorptivity of the gauge | scalar | no | 1
emissivity | Emissivity of the gauge | scalar | no | 1
T | Name of the temperature field | word | no | T
qin | Name of the incident radiative heat flux field | word | no | qin
alphat | Name of turbulent thermal diffusivity field | word | no | alphat
convective | Write convective heat flux into file | bool | no | true
radiative | Write radiative heat flux into file | bool | no | true
writeFields | Write the fields 'qConv' and 'qRad' | bool | no | true
\endtable
The inherited entries are elaborated in:
- \link functionObject.H \endlink
- \link writeFile.H \endlink
- \link fvMeshFunctionObject.H \endlink
- \link writeFile.H \endlink
- \link pointProberBase.H \endlink
- \link patchProber.H \endlink
SourceFiles
wallHeatFlux.C
\*---------------------------------------------------------------------------*/
#ifndef Foam_functionObjects_wallHeatFlux_H
#define Foam_functionObjects_wallHeatFlux_H
#ifndef functionObjects_wallHeatFlux_H
#define functionObjects_wallHeatFlux_H
#include "fvMeshFunctionObject.H"
#include "writeFile.H"
#include "volFieldsFwd.H"
#include "HashSet.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
// Forward Declarations
class wallHeatFluxModel;
namespace functionObjects
{
@ -98,32 +127,12 @@ namespace functionObjects
class wallHeatFlux
:
public fvMeshFunctionObject,
public writeFile
public fvMeshFunctionObject
{
protected:
// Private Data
// Protected Data
//- Wall patches to process (optionally filtered by name)
labelList patchIDs_;
//- Name of radiative heat flux name
word qrName_;
// Protected Member Functions
//- File header information
virtual void writeFileHeader(Ostream& os) const;
//- Calculate the heat-flux
void calcHeatFlux
(
const volScalarField& alpha,
const volScalarField& he,
volScalarField& wallHeatFlux
);
//- Heat-flux model
autoPtr<wallHeatFluxModel> qModelPtr_;
public:
@ -139,15 +148,9 @@ public:
(
const word& name,
const Time& runTime,
const dictionary&
const dictionary& dict
);
//- No copy construct
wallHeatFlux(const wallHeatFlux&) = delete;
//- No copy assignment
void operator=(const wallHeatFlux&) = delete;
//- Destructor
virtual ~wallHeatFlux() = default;
@ -155,13 +158,13 @@ public:
// Member Functions
//- Read the function-object dictionary
//- Read the settings
virtual bool read(const dictionary& dict);
//- Execute the function-object operations
//- Calculate the heat-flux data
virtual bool execute();
//- Write the function-object results
//- Write the heat-flux data
virtual bool write();
};

View File

@ -0,0 +1,548 @@
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | www.openfoam.com
\\/ M anipulation |
-------------------------------------------------------------------------------
Copyright (C) 2025 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "gauge.H"
#include "physicoChemicalConstants.H"
#include "addToRunTimeSelectionTable.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
namespace wallHeatFluxModels
{
defineTypeNameAndDebug(gauge, 0);
addToRunTimeSelectionTable
(
wallHeatFluxModel,
gauge,
dictionary
);
}
}
// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
Foam::scalar Foam::wallHeatFluxModels::gauge::calcRadiantExitance() const
{
// Radiant exitance (Wikipedia EN): https://w.wiki/CdZz
return e_*constant::physicoChemical::sigma.value()*Foam::pow4(Tgauge_);
}
Foam::tmp<Foam::labelField>
Foam::wallHeatFluxModels::gauge::identifyProbeCells() const
{
// Fetch the neighbour cells of the operand patch
const polyPatch& patch = mesh().boundaryMesh()[patchID_];
const labelUList& faceCells = patch.faceCells();
const label patchFaceStart = patch.start();
// Fetch the patch faces that correspond to the specified probes
const labelList& probeFaces = patchProber::faces();
// Initialise the size of the operand cells
auto tprobeCells = tmp<labelField>::New(probeFaces.size(), -1);
labelField& probeCells = tprobeCells.ref();
// Store the indices of the cells that contain the probed patch faces
forAll(probeFaces, facei)
{
if (activeFaces_[facei])
{
const label patchFaceGlobali = probeFaces[facei];
const label patchFaceLocali = patchFaceGlobali - patchFaceStart;
probeCells[facei] = faceCells[patchFaceLocali];
}
}
return tprobeCells;
}
bool Foam::wallHeatFluxModels::gauge::writeFileHeader(Ostream& os)
{
writeHeader(os, typeName);
os << "# Patch," << mesh().boundaryMesh()[patchID_].name() << nl
<< "# Tgauge," << Tgauge_ << nl
<< "# Absorptivity," << a_ << nl
<< "# Emissivity," << e_ << nl
<< "# ProbeID,Original Location,Patch Location" << nl;
const pointField& oldPoints = patchProber::oldPoints();
const pointField& probeLocs = patchProber::probeLocations();
for (label i = 0; i < szProbes_; ++i)
{
const vector& oldPoint = oldPoints[i];
const vector& probeLoc = probeLocs[i];
os << '#' << ' ' << i
<< ',' << oldPoint.x() << ',' << oldPoint.y() << ',' << oldPoint.z()
<< ',' << probeLoc.x() << ',' << probeLoc.y() << ',' << probeLoc.z()
<< nl;
}
os << "# Time";
for (int i = 0; i < szProbes_; ++i)
{
os << ',' << i;
}
os << endl;
return true;
}
bool Foam::wallHeatFluxModels::gauge::calcConvectiveHeatFlux()
{
// Fetch the turbulent thermal diffusivity field
const auto* alphatPtr = mesh().cfindObject<volScalarField>(alphatName_);
#ifdef FULLDEBUG
if (!alphatPtr)
{
FatalErrorInFunction
<< "Turbulent thermal diffusivity field, alphat, is not available."
<< nl << "alphat: " << alphatName_
<< exit(FatalError);
}
#endif
// Compute the term: C_p*(alpha + alpha_t)
tmp<volScalarField> tkappaEff = thermo_.kappaEff(*alphatPtr);
const volScalarField& kappaEff = tkappaEff.cref();
// Sample the term above at patch-probe locations
tmp<scalarField> tsampledKappaEff = patchProber::sample(kappaEff);
const scalarField& sampledKappaEff = tsampledKappaEff.cref();
// Compute the patch-normal gradient of temperature with respect to the
// specified gauge temperature
tmp<scalarField> tdTdn = calcdTdn();
const scalarField& dTdn = tdTdn.cref();
#ifdef FULLDEBUG
if (sampledKappaEff.size() != dTdn.size())
{
FatalErrorInFunction
<< "Size mismatch: kappaEff samples (" << sampledKappaEff.size()
<< ") vs dTdn (" << dTdn.size() << ")." << nl
<< "Probe selection/order must match." << nl
<< exit(FatalError);
}
#endif
// Compute q''_conv = k_eff * dT/dn
tmp<scalarField> tq = sampledKappaEff*dTdn;
const scalarField& q = tq.cref();
// Be picky - Ensure storage exists and matches size
if (qConvPtr_ && (qConvPtr_->size() == q.size()))
{
*qConvPtr_ = q;
}
else
{
IOobject io
(
"qConv",
mesh().time().timeName(),
mesh()
);
qConvPtr_.reset(new scalarIOField(io, q));
}
// Note that for inactive faces q=0 since dT/dn=0
Pstream::listReduce(*qConvPtr_, sumOp<scalar>());
return true;
}
Foam::tmp<Foam::scalarField>
Foam::wallHeatFluxModels::gauge::calcdTdn() const
{
// Allocate and initialise the storage for dT/dn
auto tdTdn = tmp<scalarField>::New(szProbes_, 0);
scalarField& dTdn = tdTdn.ref();
// Fetch the temperature field
const auto* Tptr = mesh().cfindObject<volScalarField>(Tname_);
#ifdef FULLDEBUG
if (!Tptr)
{
FatalErrorInFunction
<< "Temperature field, T, is not available."
<< nl << "T: " << Tname_
<< exit(FatalError);
}
#endif
// Fetch the internal fields for temperature and distance-to-patch fields
const scalarField& Ti = Tptr->primitiveField();
const auto& pdc = mesh().deltaCoeffs().boundaryField()[patchID_];
// Compute dT/dn for active faces and their owner cells
forAll(cells_, probei)
{
if (activeFaces_[probei])
{
const label cellID = cells_[probei];
dTdn[probei] = (Ti[cellID] - Tgauge_)/max(pdc[probei], SMALL);
}
}
return tdTdn;
}
bool Foam::wallHeatFluxModels::gauge::calcRadiativeHeatFlux()
{
// Fetch the incident radiative heat-flux field
const auto* qinPtr = mesh().getObjectPtr<volScalarField>(qinName_);
#ifdef FULLDEBUG
if (!qinPtr)
{
FatalErrorInFunction
<< "Incident radiative heat-flux field, qin, is not available."
<< nl << "qin: " << qinName_
<< exit(FatalError);
}
#endif
const volScalarField& qin = *qinPtr;
// Sample the incident radiative heat-flux field at patch-probe locations
tmp<scalarField> tq = patchProber::sample(qin);
const scalarField& q = tq.cref();
// Compute q''_rad = a * q_in - M_e
tmp<scalarField> tqrad = a_*q - Me_;
scalarField& qrad = tqrad.ref();
// Overwrite q''_rad=0 for inactive probed faces
forAll(qrad, probei)
{
if (!activeFaces_[probei])
{
qrad[probei] = 0;
}
}
// Be picky - Ensure storage exists and matches size
if (qRadPtr_ && (qRadPtr_->size() == qrad.size()))
{
*qRadPtr_ = qrad;
}
else
{
IOobject io
(
"qRad",
mesh().time().timeName(),
mesh()
);
qRadPtr_.reset(new scalarIOField(io, qrad));
}
// Note that for inactive faces qrad=0
Pstream::listReduce(*qRadPtr_, sumOp<scalar>());
return true;
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::wallHeatFluxModels::gauge::gauge
(
const dictionary& dict,
const fvMesh& mesh,
const word& name,
const word objName,
functionObjects::stateFunctionObject& state
)
:
wallHeatFluxModel(dict, mesh, name, objName, state),
patchProber(mesh, dict),
thermo_(mesh.lookupObject<fluidThermo>(fluidThermo::dictName))
{}
// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
bool Foam::wallHeatFluxModels::gauge::read(const dictionary& dict)
{
if (!wallHeatFluxModel::read(dict) || !patchProber::read(dict))
{
return false;
}
// Do not proceed if the operand heat-flux field is not registered
qinName_ = dict.getOrDefault<word>("qin", "qin");
const auto* qinPtr = mesh().cfindObject<volScalarField>(qinName_);
if (!qinPtr)
{
FatalErrorInFunction
<< "Incident radiative heat-flux field, qin, is not available."
<< nl << "qin: " << qinName_
<< exit(FatalError);
}
// Fetch the patch-prober data
const labelList& patchIDs = patchProber::patchIDs();
if (patchIDs.size() == 1)
{
patchID_ = patchIDs[0];
}
else
{
FatalIOErrorInFunction(dict)
<< "This function object can operate on only a single patch." << nl
<< "The number of input patches: " << patchIDs.size()
<< exit(FatalIOError);
}
// Fetch the number of probes, and verify the consistent sizing
szProbes_ = patchProber::probeLocations().size();
const labelList& probeFaces = patchProber::faces();
if (szProbes_ != probeFaces.size())
{
FatalErrorInFunction
<< "Size mismatch: szProbes (" << szProbes_
<< ") vs probeFaces (" << probeFaces.size() << ")." << nl
<< "Number of patch probes and patch faces must match." << nl
<< exit(FatalError);
}
// Create and register the output heat-flux fields
// Maybe number of probes is changed; thus, no check for the pointer
qConvPtr_.reset
(
new scalarIOField
(
IOobject
(
"qConv",
mesh().time().timeName(),
mesh()
),
szProbes_
)
);
qRadPtr_.reset
(
new scalarIOField
(
IOobject
(
"qRad",
mesh().time().timeName(),
mesh()
),
szProbes_
)
);
// Read and store the common properties of the gauges
Tgauge_ = dict.getScalar("Tgauge");
if (Tgauge_ < 0)
{
FatalIOErrorInFunction(dict)
<< "Gauge temperature cannot be negative." << nl
<< "Tgauge: " << Tgauge_
<< exit(FatalIOError);
}
a_ = dict.getOrDefault<scalar>("absorptivity", 1);
e_ = dict.getOrDefault<scalar>("emissivity", 1);
if (a_ < 0 || a_ > 1 || e_ < 0 || e_ > 1)
{
FatalIOErrorInFunction(dict)
<< "The range of absorptivity and emissivity can only be [0,1]."
<< "Absorptivity: " << a_ << nl
<< "Emissivity: " << e_
<< exit(FatalIOError);
}
// Read names of various fields; also early check if the fields exist
Tname_ = dict.getOrDefault<word>("T", "T");
const auto* Tptr = mesh().cfindObject<volScalarField>(Tname_);
if (!Tptr)
{
FatalErrorInFunction
<< "Temperature field, T, is not available."
<< nl << "T: " << Tname_
<< exit(FatalError);
}
alphatName_ = dict.getOrDefault<word>("alphat", "alphat");
const auto* alphatPtr = mesh().cfindObject<volScalarField>(alphatName_);
if (!alphatPtr)
{
FatalErrorInFunction
<< "Turbulent thermal diffusivity field, alphat, is not available."
<< nl << "alphat: " << alphatName_
<< exit(FatalError);
}
// Compute the radiant-exitance term of the radiative heat flux
// The term is calculated once per simulation unless Tgauge is changed
Me_ = calcRadiantExitance();
// Identify the faces that are actively sampled - assuming no duplication
activeFaces_.resize_fill(probeFaces.size(), false);
forAll(probeFaces, facei)
{
if (probeFaces[facei] != -1)
{
activeFaces_[facei] = true;
}
}
// Identify the indices of the cells that contain the probed patch faces
cells_ = identifyProbeCells();
// Prepare the output files
if (writeFile::canResetFile())
{
writeFile::resetFile(objName());
}
if (writeFile::canWriteHeader())
{
writeFileHeader(file());
writtenHeader_ = true;
}
bool convective = dict.getOrDefault<bool>("convective", false);
if (UPstream::master() && convective && !convectiveFilePtr_)
{
convectiveFilePtr_ = newFileAtStartTime("convective");
writeFileHeader(convectiveFilePtr_());
}
bool radiative = dict.getOrDefault<bool>("radiative", false);
if (UPstream::master() && radiative && !radiativeFilePtr_)
{
radiativeFilePtr_ = newFileAtStartTime("radiative");
writeFileHeader(radiativeFilePtr_());
}
writeFields_ = dict.getOrDefault<bool>("writeFields", false);
return true;
}
bool Foam::wallHeatFluxModels::gauge::execute()
{
if (!(calcConvectiveHeatFlux() && calcRadiativeHeatFlux()))
{
return false;
}
return true;
}
bool Foam::wallHeatFluxModels::gauge::write()
{
if (UPstream::master())
{
Ostream& os = file();
os << mesh().time().timeOutputValue();
for (label pi = 0; pi < szProbes_; ++pi)
{
os << ',' << (*qConvPtr_)[pi] + (*qRadPtr_)[pi];
}
os << endl;
}
if (UPstream::master() && convectiveFilePtr_)
{
OFstream& os = convectiveFilePtr_.ref();
os << mesh().time().timeOutputValue();
for (label pi = 0; pi < szProbes_; ++pi)
{
os << ',' << (*qConvPtr_)[pi];
}
os << endl;
}
if (UPstream::master() && radiativeFilePtr_)
{
OFstream& os = radiativeFilePtr_.ref();
os << mesh().time().timeOutputValue();
for (label pi = 0; pi < szProbes_; ++pi)
{
os << ',' << (*qRadPtr_)[pi];
}
os << endl;
}
if (writeFields_)
{
if (qConvPtr_) qConvPtr_->write();
if (qRadPtr_) qRadPtr_->write();
}
return true;
}
// ************************************************************************* //

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | www.openfoam.com
\\/ M anipulation |
-------------------------------------------------------------------------------
Copyright (C) 2025 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Class
Foam::wallHeatFluxModels::gauge
Description
This model computes the wall-heat flux at a selected patch using
imaginary heat-flux gauges.
Heat-flux gauges are measurement tools that are placed on walls. The
temperature of the gauges is usually different from that of the surrounding
wall - an order of magnitude lower. The model allows the user to
specify the gauge temperature and other gauge properties such as
absorptivity or emissivity without creating separate patches.
The model calculates the net convective and radiative heat fluxes at the
gauge locations, combines them, and writes the results to the output files.
Usage
Minimal example by using \c system/controlDict.functions:
\verbatim
wallHeatFlux1
{
// Mandatory entries
type wallHeatFlux;
libs (fieldFunctionObjects);
model gauge;
Tgauge <scalar>;
patch <word>;
// Optional entries
absorptivity <scalar>;
emissivity <scalar>;
T <word>;
qin <word>;
alphat <word>;
convective <bool>;
radiative <bool>;
writeFields <bool>;
// Inherited entries
...
}
\endverbatim
where the entries mean:
\table
Property | Description | Type | Reqd | Deflt
type | Type name: wallHeatFlux | word | yes | -
libs | Library name: fieldFunctionObjects | word | yes | -
model | Model name: gauge | word | no | wall
Tgauge | Gauge temperature (K) | scalar | yes | -
patch | Name of the patch to probe | word | yes | -
absorptivity | Absorptivity of the gauge | scalar | no | 1
emissivity | Emissivity of the gauge | scalar | no | 1
T | Name of the temperature field | word | no | T
qin | Name of the incident radiative heat flux field | word | no | qin
alphat | Name of turbulent thermal diffusivity field | word | no | alphat
convective | Calculate convective heat flux | bool | no | false
radiative | Calculate radiative heat flux | bool | no | false
writeFields | Write the fields to file | bool | no | false
\endtable
The inherited entries are elaborated in:
- \link fvMeshFunctionObject.H \endlink
- \link writeFile.H \endlink
- \link pointProberBase.H \endlink
- \link patchProber.H \endlink
SourceFiles
gauge.C
\*---------------------------------------------------------------------------*/
#ifndef wallHeatFluxModels_gauge_H
#define wallHeatFluxModels_gauge_H
#include "wallHeatFluxModel.H"
#include "writeFile.H"
#include "patchProber.H"
#include "wallDist.H"
#include "turbulentFluidThermoModel.H"
#include "scalarIOField.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace wallHeatFluxModels
{
/*---------------------------------------------------------------------------*\
Class gauge Declaration
\*---------------------------------------------------------------------------*/
class gauge
:
public wallHeatFluxModel,
public patchProber
{
// Private Data
//- Const reference to the thermo database
const fluidThermo& thermo_;
//- Net convective gauge heat flux at patch-probe locations
std::unique_ptr<scalarIOField> qConvPtr_;
//- Net radiative gauge heat flux at patch-probe locations
std::unique_ptr<scalarIOField> qRadPtr_;
//- Flag to output the net convective heat flux data
autoPtr<OFstream> convectiveFilePtr_;
//- Flag to output the net radiative heat flux data
autoPtr<OFstream> radiativeFilePtr_;
//- Indices of the patch cells that will be probed
labelField cells_;
//- Identifier of the faces that are actively sampled
boolList activeFaces_;
//- Name of the incident radiative heat-flux field
word qinName_;
//- Name of the temperature field
word Tname_;
//- Name of the turbulent thermal diffusivity field
word alphatName_;
//- Common and constant temperature of the gauges
scalar Tgauge_;
//- Radiant exitance
scalar Me_;
//- Absorptivity of the gauge surfaces
scalar a_;
//- Emissivity of the gauge surfaces
scalar e_;
//- Index of the operand patch
label patchID_;
//- Number of specified patch probes
label szProbes_;
//- Flag to output the net convective/radiative heat flux fields
bool writeFields_;
// Private Member Functions
//- Return the radiant-exitance term of the radiative heat flux
scalar calcRadiantExitance() const;
//- Return the indices of the cells that contain the probed patch faces
tmp<labelField> identifyProbeCells() const;
//- Write the file-header information
bool writeFileHeader(Ostream& os);
//- Calculate the net convective heat flux
bool calcConvectiveHeatFlux();
//- Return the dT/dn term of the convective heat flux
tmp<scalarField> calcdTdn() const;
//- Calculate the net radiative heat flux
bool calcRadiativeHeatFlux();
public:
//- Runtime type information
TypeName("gauge");
// Constructors
//- Construct from components
gauge
(
const dictionary& dict,
const fvMesh& mesh,
const word& name,
const word objName,
functionObjects::stateFunctionObject& state
);
//- Destructor
virtual ~gauge() = default;
// Member Functions
// Evaluation
//- Read the settings
virtual bool read(const dictionary& dict);
//- Calculate the heat-flux data
virtual bool execute();
//- Write the heat-flux data
virtual bool write();
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace wallHeatFluxModels
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //

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@ -0,0 +1,333 @@
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | www.openfoam.com
\\/ M anipulation |
-------------------------------------------------------------------------------
Copyright (C) 2025 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "wall.H"
#include "turbulentFluidThermoModel.H"
#include "solidThermo.H"
#include "surfaceInterpolate.H"
#include "fvcSnGrad.H"
#include "wallPolyPatch.H"
#include "turbulentFluidThermoModel.H"
#include "multiphaseInterSystem.H"
#include "addToRunTimeSelectionTable.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
namespace wallHeatFluxModels
{
defineTypeNameAndDebug(wall, 0);
addToRunTimeSelectionTable
(
wallHeatFluxModel,
wall,
dictionary
);
}
}
// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
void Foam::wallHeatFluxModels::wall::writeFileHeader(Ostream& os)
{
writeHeader(os, "Wall heat-flux");
writeCommented(os, "Time");
writeTabbed(os, "patch");
writeTabbed(os, "min");
writeTabbed(os, "max");
writeTabbed(os, "integral");
os << endl;
writtenHeader_ = true;
}
void Foam::wallHeatFluxModels::wall::calcHeatFlux
(
const volScalarField& alpha,
const volScalarField& he,
volScalarField& wallHeatFlux
)
{
volScalarField::Boundary& wallHeatFluxBf = wallHeatFlux.boundaryFieldRef();
const volScalarField::Boundary& heBf = he.boundaryField();
const volScalarField::Boundary& alphaBf = alpha.boundaryField();
const labelHashSet& patches = patchSet();
for (const label patchi : patches)
{
wallHeatFluxBf[patchi] = alphaBf[patchi]*heBf[patchi].snGrad();
}
const auto* qrPtr = mesh().cfindObject<volScalarField>(qrName());
if (qrPtr)
{
const volScalarField::Boundary& radHeatFluxBf = qrPtr->boundaryField();
for (const label patchi : patches)
{
wallHeatFluxBf[patchi] -= radHeatFluxBf[patchi];
}
}
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::wallHeatFluxModels::wall::wall
(
const dictionary& dict,
const fvMesh& mesh,
const word& name,
const word objName,
functionObjects::stateFunctionObject& state
)
:
wallHeatFluxModel(dict, mesh, name, objName, state)
{
auto* wallHeatFluxPtr
(
new volScalarField
(
IOobject
(
objName,
mesh.time().timeName(),
mesh
),
mesh,
dimensionedScalar(dimMass/pow3(dimTime), Zero)
)
);
mesh.objectRegistry::store(wallHeatFluxPtr);
}
// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
bool Foam::wallHeatFluxModels::wall::read(const dictionary& dict)
{
if (!wallHeatFluxModel::read(dict))
{
return false;
}
qrName_ = dict.getOrDefault<word>("qr", "qr");
Info<< state().type() << " " << state().name() << ":" << nl;
patchSet_ = mesh().boundaryMesh().patchSet
(
dict.getOrDefault<wordRes>("patches", wordRes())
);
const polyBoundaryMesh& pbm = mesh().boundaryMesh();
if (patchSet_.empty())
{
forAll(pbm, patchi)
{
if (isA<wallPolyPatch>(pbm[patchi]))
{
patchSet_.insert(patchi);
}
}
Info<< " processing all wall patches" << nl << endl;
}
else
{
Info<< " processing wall patches: " << nl;
labelHashSet filteredPatchSet;
for (const label patchi : patchSet_)
{
if (isA<wallPolyPatch>(pbm[patchi]))
{
filteredPatchSet.insert(patchi);
Info<< " " << pbm[patchi].name() << endl;
}
else
{
WarningInFunction
<< "Requested wall heat-flux on non-wall boundary "
<< "type patch: " << pbm[patchi].name() << endl;
}
}
Info<< endl;
patchSet_ = filteredPatchSet;
}
if (writeFile::canResetFile())
{
writeFile::resetFile(objName());
}
if (writeFile::canWriteHeader())
{
writeFileHeader(file());
}
return true;
}
bool Foam::wallHeatFluxModels::wall::execute()
{
auto& wallHeatFlux = mesh().lookupObjectRef<volScalarField>(objName());
if
(
mesh().foundObject<compressible::turbulenceModel>
(
turbulenceModel::propertiesName
)
)
{
const compressible::turbulenceModel& turbModel =
mesh().lookupObject<compressible::turbulenceModel>
(
turbulenceModel::propertiesName
);
calcHeatFlux
(
turbModel.alphaEff()(),
turbModel.transport().he(),
wallHeatFlux
);
}
else if (mesh().foundObject<fluidThermo>(fluidThermo::dictName))
{
const fluidThermo& thermo =
mesh().lookupObject<fluidThermo>(fluidThermo::dictName);
calcHeatFlux
(
thermo.alpha(),
thermo.he(),
wallHeatFlux
);
}
else if (mesh().foundObject<solidThermo>(solidThermo::dictName))
{
const solidThermo& thermo =
mesh().lookupObject<solidThermo>(solidThermo::dictName);
calcHeatFlux(thermo.alpha(), thermo.he(), wallHeatFlux);
}
else if
(
mesh().foundObject<multiphaseInterSystem>
(multiphaseInterSystem::phasePropertiesName)
)
{
const auto& thermo = mesh().lookupObject<multiphaseInterSystem>
(
multiphaseInterSystem::phasePropertiesName
);
calcHeatFlux(thermo.kappaEff()(), thermo.T(), wallHeatFlux);
}
else
{
FatalErrorInFunction
<< "Unable to find compressible turbulence model in the "
<< "database" << exit(FatalError);
}
const fvPatchList& patches = mesh().boundary();
const surfaceScalarField::Boundary& magSf = mesh().magSf().boundaryField();
const labelHashSet& patchset = patchSet();
for (const label patchi : patchset)
{
const fvPatch& pp = patches[patchi];
const scalarField& hfp = wallHeatFlux.boundaryField()[patchi];
const scalar minHfp = gMin(hfp);
const scalar maxHfp = gMax(hfp);
const scalar integralHfp = gSum(magSf[patchi]*hfp);
if (Pstream::master())
{
writeCurrentTime(file());
file()
<< token::TAB << pp.name()
<< token::TAB << minHfp
<< token::TAB << maxHfp
<< token::TAB << integralHfp
<< endl;
}
if (state().log)
{
Info<< " min/max/integ(" << pp.name() << ") = "
<< minHfp << ", " << maxHfp << ", " << integralHfp << endl;
}
state().setResult("min(" + pp.name() + ")", minHfp);
state().setResult("max(" + pp.name() + ")", maxHfp);
state().setResult("int(" + pp.name() + ")", integralHfp);
}
return true;
}
bool Foam::wallHeatFluxModels::wall::write()
{
const auto& wallHeatFlux =
mesh().lookupObject<volScalarField>(objName());
if (state().log)
{
Info<< " writing field " << wallHeatFlux.name() << endl;
}
wallHeatFlux.write();
return true;
}
// ************************************************************************* //

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@ -0,0 +1,176 @@
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | www.openfoam.com
\\/ M anipulation |
-------------------------------------------------------------------------------
Copyright (C) 2025 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Class
Foam::wallHeatFluxModels::wall
Description
This model computes the wall-heat flux at selected wall patches.
Usage
Minimal example by using \c system/controlDict.functions:
\verbatim
wallHeatFlux1
{
// Mandatory entries
type wallHeatFlux;
libs (fieldFunctionObjects);
model wall;
// Optional entries
patches (<patch1> ... <patchN>); // (wall1 "(wall2|wall3)");
qr <word>;
// Inherited entries
...
}
\endverbatim
where the entries mean:
\table
Property | Description | Type | Reqd | Deflt
type | Type name: wallHeatFlux | word | yes | -
libs | Library name: fieldFunctionObjects | word | yes | -
patches | Names of operand patches | wordList | no | all wall patches
qr | Name of radiative heat flux field | word | no | qr
\endtable
The inherited entries are elaborated in:
- \link fvMeshFunctionObject.H \endlink
- \link writeFile.H \endlink
Note
- The model \c wall corresponds to \c wallHeatFlux in OpenFOAM v2506 and
earlier versions.
SourceFiles
wall.C
\*---------------------------------------------------------------------------*/
#ifndef wallHeatFluxModels_wall_H
#define wallHeatFluxModels_wall_H
#include "wallHeatFluxModel.H"
#include "writeFile.H"
#include "volFieldsFwd.H"
#include "HashSet.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace wallHeatFluxModels
{
/*---------------------------------------------------------------------------*\
Class wall Declaration
\*---------------------------------------------------------------------------*/
class wall
:
public wallHeatFluxModel
{
// Private Data
//- Name of the radiative heat-flux field
word qrName_;
//- List of names of wall patches to process
labelHashSet patchSet_;
// Private Member Functions
//- Write file-header information
void writeFileHeader(Ostream& os);
//- Calculate the wall heat-flux
void calcHeatFlux
(
const volScalarField& alpha,
const volScalarField& he,
volScalarField& wallHeatFlux
);
public:
//- Runtime type information
TypeName("wall");
// Constructors
//- Construct from components
wall
(
const dictionary& dict,
const fvMesh& mesh,
const word& name,
const word objName,
functionObjects::stateFunctionObject& state
);
//- Destructor
virtual ~wall() = default;
// Member Functions
// Access
//- Return const reference to name of radiative heat-flux field
const word& qrName() const noexcept { return qrName_; }
//- Return const reference to patches to process
const labelHashSet& patchSet() const noexcept { return patchSet_; }
// Evaluation
//- Read the settings
virtual bool read(const dictionary& dict);
//- Calculate the heat-flux data
virtual bool execute();
//- Write the heat-flux data
virtual bool write();
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace wallHeatFluxModels
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //

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@ -0,0 +1,73 @@
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | www.openfoam.com
\\/ M anipulation |
-------------------------------------------------------------------------------
Copyright (C) 2025 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "wallHeatFluxModel.H"
#include "fvMesh.H"
#include "wallPolyPatch.H"
#include "addToRunTimeSelectionTable.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
defineTypeNameAndDebug(wallHeatFluxModel, 0);
defineRunTimeSelectionTable(wallHeatFluxModel, dictionary);
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::wallHeatFluxModel::wallHeatFluxModel
(
const dictionary& dict,
const fvMesh& mesh,
const word& name,
const word objName,
functionObjects::stateFunctionObject& state
)
:
functionObjects::writeFile(mesh, name, objName, dict),
mesh_(mesh),
state_(state),
objName_(objName)
{}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
bool Foam::wallHeatFluxModel::read(const dictionary& dict)
{
if (!writeFile::read(dict))
{
return false;
}
return true;
}
// ************************************************************************* //

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@ -0,0 +1,181 @@
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | www.openfoam.com
\\/ M anipulation |
-------------------------------------------------------------------------------
Copyright (C) 2025 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Namespace
Foam::wallHeatFluxModels
Description
A namespace for various heat-flux model implementations.
Class
Foam::wallHeatFluxModel
Description
A base class for heat-flux models.
SourceFiles
wallHeatFluxModel.C
wallHeatFluxModelNew.C
\*---------------------------------------------------------------------------*/
#ifndef Foam_wallHeatFluxModel_H
#define Foam_wallHeatFluxModel_H
#include "writeFile.H"
#include "volFieldsFwd.H"
#include "HashSet.H"
#include "stateFunctionObject.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
// Forward Declarations
class fvMesh;
/*---------------------------------------------------------------------------*\
Class wallHeatFluxModel Declaration
\*---------------------------------------------------------------------------*/
class wallHeatFluxModel
:
public functionObjects::writeFile
{
// Private Data
//- Const reference to the mesh
const fvMesh& mesh_;
//- Reference to the state function object
functionObjects::stateFunctionObject& state_;
//- Name of the function object
const word objName_;
public:
//- Runtime type information
TypeName("wallHeatFluxModel");
// Declare runtime constructor selection table
declareRunTimeSelectionTable
(
autoPtr,
wallHeatFluxModel,
dictionary,
(
const dictionary& dict,
const fvMesh& mesh,
const word& name,
const word objName,
functionObjects::stateFunctionObject& state
),
(dict, mesh, name, objName, state)
);
// Selectors
//- Return a reference to the selected heat-flux model
static autoPtr<wallHeatFluxModel> New
(
const dictionary& dict,
const fvMesh& mesh,
const word& name,
const word objName,
functionObjects::stateFunctionObject& state
);
// Generated Methods
//- No copy construct
wallHeatFluxModel(const wallHeatFluxModel&) = delete;
//- No copy assignment
void operator=(const wallHeatFluxModel&) = delete;
// Constructors
//- Construct from components
wallHeatFluxModel
(
const dictionary& dict,
const fvMesh& mesh,
const word& name,
const word objName,
functionObjects::stateFunctionObject& state
);
//- Destructor
virtual ~wallHeatFluxModel() = default;
// Member Functions
// Access
//- Return const reference to the mesh
const fvMesh& mesh() const noexcept { return mesh_; }
//- Return const reference to the state function object
functionObjects::stateFunctionObject& state() const noexcept
{
return state_;
}
//- Return const reference to the function-object name
const word& objName() const noexcept { return objName_; }
// Evaluation
//- Read the settings
virtual bool read(const dictionary& dict) = 0;
//- Calculate the heat-flux data
virtual bool execute() = 0;
//- Write the heat-flux data
virtual bool write() = 0;
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //

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@ -0,0 +1,67 @@
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | www.openfoam.com
\\/ M anipulation |
-------------------------------------------------------------------------------
Copyright (C) 2025 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "wallHeatFluxModel.H"
#include "fvMesh.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Foam::autoPtr<Foam::wallHeatFluxModel> Foam::wallHeatFluxModel::New
(
const dictionary& dict,
const fvMesh& mesh,
const word& name,
const word objName,
functionObjects::stateFunctionObject& state
)
{
const word modelType(dict.getOrDefault<word>("model", "wall"));
Info<< "Selecting heat-flux model: " << modelType << endl;
auto* ctorPtr = dictionaryConstructorTable(modelType);
if (!ctorPtr)
{
FatalIOErrorInLookup
(
dict,
"wallHeatFluxModel",
modelType,
*dictionaryConstructorTablePtr_
) << exit(FatalIOError);
}
return autoPtr<wallHeatFluxModel>
(
ctorPtr(dict, mesh, name, objName, state)
);
}
// ************************************************************************* //