mirror of
https://develop.openfoam.com/Development/openfoam.git
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ENH: Added new hydrostatic pressure function object
Calculates and outputs the pressure fields p_rgh and ph_rgh based on the
option that was previously hard-coded in the fireFoam solver
Usage
Example of function object specification to calculate hydrostatic pressure:
\verbatim
hydrostaticPressure1
{
type hydrostaticPressure;
libs ("libinitialisationFunctionObjects.so");
...
}
\endverbatim
Where the entries comprise:
\table
Property | Description | Required | Default value
log | Log to standard output | no | yes
p_rgh | Name of p_rgh field | no | p_rgh
ph_rgh | Name of ph_rgh field | no | ph_rgh
pRef | Name of pressure ref field | no | pRef
rho | Name of density field | no | rho
U | Name of velocity field | no | U
gh | Name of gravity*height volume field | no | gh
ghf | Name of gravity*height surface field | no | ghf
nCorrectors | Number of correctors when solving ph_rgh | no | 5
\endtable
Note
Calculates the hydrostatic pressure on construction/re-initialisation;
the execute and write functions are not used.
This commit is contained in:
Andrew Heather
@ -6,6 +6,7 @@ cd ${0%/*} || exit 1 # Run from this directory
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wmake $targetType field
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wmake $targetType forces
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wmake $targetType initialisation
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wmake $targetType lagrangian
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wmake $targetType utilities
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wmake $targetType solvers
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@ -41,6 +41,7 @@ The current range of features comprises of:
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- \ref grpFieldFunctionObjects
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- \ref grpForcesFunctionObjects
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- \ref grpGraphicsFunctionObjects
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- \ref grpInitialisationFunctionObjects
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- \ref grpLagrangianFunctionObjects
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- \ref grpSolversFunctionObjects
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- \ref grpUtilitiesFunctionObjects
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3
src/functionObjects/initialisation/Make/files
Normal file
3
src/functionObjects/initialisation/Make/files
Normal file
@ -0,0 +1,3 @@
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hydrostaticPressure/hydrostaticPressure.C
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LIB = $(FOAM_LIBBIN)/libinitialisationFunctionObjects
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43
src/functionObjects/initialisation/Make/options
Normal file
43
src/functionObjects/initialisation/Make/options
Normal file
@ -0,0 +1,43 @@
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EXE_INC = \
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-I$(LIB_SRC)/finiteVolume/lnInclude \
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-I$(LIB_SRC)/meshTools/lnInclude \
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-I$(LIB_SRC)/lagrangian/basic/lnInclude \
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-I$(LIB_SRC)/lagrangian/distributionModels/lnInclude \
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-I$(LIB_SRC)/fileFormats/lnInclude \
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-I$(LIB_SRC)/sampling/lnInclude \
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-I$(LIB_SRC)/surfMesh/lnInclude \
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-I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \
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-I$(LIB_SRC)/transportModels \
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-I$(LIB_SRC)/transportModels/compressible/lnInclude \
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-I$(LIB_SRC)/TurbulenceModels/turbulenceModels/lnInclude \
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-I$(LIB_SRC)/TurbulenceModels/incompressible/lnInclude \
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-I$(LIB_SRC)/TurbulenceModels/compressible/lnInclude \
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-I$(LIB_SRC)/transportModels/compressible/lnInclude \
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-I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \
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-I$(LIB_SRC)/thermophysicalModels/solidThermo/lnInclude \
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-I$(LIB_SRC)/thermophysicalModels/chemistryModel/lnInclude \
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-I$(LIB_SRC)/thermophysicalModels/reactionThermo/lnInclude \
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-I$(LIB_SRC)/thermophysicalModels/specie/lnInclude \
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-I$(LIB_SRC)/finiteVolume/lnInclude \
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-I$(LIB_SRC)/meshTools/lnInclude \
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-I$(LIB_SRC)/sampling/lnInclude \
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-I$(LIB_SRC)/surfMesh/lnInclude \
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-I$(LIB_SRC)/fvAgglomerationMethods/pairPatchAgglomeration/lnInclude
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LIB_LIBS = \
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-lfiniteVolume \
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-lmeshTools \
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-llagrangian \
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-ldistributionModels \
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-lsampling \
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-lsurfMesh \
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-lfluidThermophysicalModels \
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-lsolidThermo \
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-lincompressibleTransportModels \
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-lturbulenceModels \
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-lcompressibleTransportModels \
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-lincompressibleTurbulenceModels \
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-lcompressibleTurbulenceModels \
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-lchemistryModel \
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-lreactionThermophysicalModels \
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-lpairPatchAgglomeration
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@ -0,0 +1,243 @@
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/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 2018 OpenCFD Ltd.
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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\*---------------------------------------------------------------------------*/
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#include "hydrostaticPressure.H"
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#include "basicThermo.H"
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#include "uniformDimensionedFields.H"
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#include "volFields.H"
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#include "surfaceInterpolate.H"
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#include "fvcDiv.H"
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#include "fvmLaplacian.H"
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#include "fvcSnGrad.H"
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#include "constrainPressure.H"
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#include "addToRunTimeSelectionTable.H"
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// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
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namespace Foam
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{
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namespace functionObjects
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{
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defineTypeNameAndDebug(hydrostaticPressure, 0);
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addToRunTimeSelectionTable
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(
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functionObject,
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hydrostaticPressure,
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dictionary
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);
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}
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}
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Foam::dimensionedScalar
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Foam::functionObjects::hydrostaticPressure::pRef() const
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{
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if (pRefName_ == "none")
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{
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return dimensionedScalar("pRef", dimPressure, pRefValue_);
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}
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else
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{
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return mesh_.lookupObject<uniformDimensionedScalarField>(pRefName_);
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}
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}
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void Foam::functionObjects::hydrostaticPressure::calculateAndWrite()
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{
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const auto& pRef = this->pRef();
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const auto& U = mesh_.lookupObject<volVectorField>(UName_);
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const auto& gh = mesh_.lookupObject<volScalarField>(ghName_);
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const auto& ghf = mesh_.lookupObject<surfaceScalarField>(ghfName_);
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auto& rho = mesh_.lookupObjectRef<volScalarField>(rhoName_);
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auto& thermo = mesh_.lookupObjectRef<basicThermo>(basicThermo::dictName);
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auto& p_rgh = mesh_.lookupObjectRef<volScalarField>(p_rghName_);
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auto& ph_rgh = mesh_.lookupObjectRef<volScalarField>(ph_rghName_);
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auto& p = thermo.p();
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Info<< "Performing hydrostatic pressure initialisation";
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if (mesh_.name() != polyMesh::defaultRegion)
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{
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Info<< "for region " << mesh_.name();
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}
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if (thermo.incompressible())
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{
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Info<< ": incompressible" << endl;
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// Constant density and temperature
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thermo.correct();
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rho = thermo.rho();
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p = ph_rgh + rho*gh + pRef;
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p_rgh = ph_rgh;
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}
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else
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{
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Info<< ": compressible" << endl;
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p = ph_rgh + rho*gh + pRef;
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thermo.correct();
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rho = thermo.rho();
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for (label i=0; i<nCorrectors_; ++i)
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{
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surfaceScalarField rhof("rhof", fvc::interpolate(rho));
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surfaceScalarField phig
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(
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"phig",
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-rhof*ghf*fvc::snGrad(rho)*mesh_.magSf()
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);
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// Update the pressure BCs to ensure flux consistency
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constrainPressure(ph_rgh, rho, U, phig, rhof);
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fvScalarMatrix ph_rghEqn
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(
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fvm::laplacian(rhof, ph_rgh) == fvc::div(phig)
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);
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ph_rghEqn.relax();
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ph_rghEqn.solve();
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p = ph_rgh + rho*gh + pRef;
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thermo.correct();
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rho = thermo.rho();
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Info<< "Hydrostatic pressure variation "
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<< (max(ph_rgh) - min(ph_rgh)).value() << endl;
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}
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p_rgh = ph_rgh;
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Log << " writing field " << ph_rgh.name() << nl;
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ph_rgh.write();
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}
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Log << " writing field " << rho.name() << nl;
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rho.write();
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Log << " writing field " << p_rgh.name() << nl;
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p_rgh.write();
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Log << " writing field " << p.name() << nl;
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p.write();
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}
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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Foam::functionObjects::hydrostaticPressure::hydrostaticPressure
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(
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const word& name,
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const Time& runTime,
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const dictionary& dict
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)
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:
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fvMeshFunctionObject(name, runTime, dict),
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p_rghName_("p_rgh"),
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ph_rghName_("ph_rgh"),
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pRefName_("pRef"),
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pRefValue_(0),
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rhoName_("rho"),
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UName_("U"),
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ghName_("gh"),
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ghfName_("ghf"),
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nCorrectors_(5)
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{
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if (read(dict))
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{
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// Read and store the initial ph_rgh field
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volScalarField* ph_rghPtr =
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new volScalarField
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(
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IOobject
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(
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ph_rghName_,
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runTime.timeName(),
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mesh_,
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IOobject::MUST_READ,
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IOobject::AUTO_WRITE // To enable restart
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),
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mesh_
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);
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mesh_.objectRegistry::store(ph_rghPtr);
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bool reInitialise = dict.lookupOrDefault<bool>("reInitialise", false);
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if (runTime.timeIndex() == 0 || reInitialise)
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{
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calculateAndWrite();
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}
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}
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}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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bool Foam::functionObjects::hydrostaticPressure::read(const dictionary& dict)
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{
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if (fvMeshFunctionObject::read(dict))
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{
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dict.readIfPresent("p_rgh", p_rghName_);
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dict.readIfPresent("ph_rgh", ph_rghName_);
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dict.readIfPresent("pRef", pRefName_);
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dict.readIfPresent("rho", rhoName_);
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dict.readIfPresent("U", UName_);
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dict.readIfPresent("gh", ghName_);
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dict.readIfPresent("ghf", ghfName_);
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dict.readIfPresent("nCorrectors", nCorrectors_);
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if (pRefName_ == "none")
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{
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pRefValue_ = dict.get<scalar>("pRefValue");
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}
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return true;
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}
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return false;
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}
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bool Foam::functionObjects::hydrostaticPressure::execute()
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{
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return true;
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}
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bool Foam::functionObjects::hydrostaticPressure::write()
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{
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return true;
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}
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// ************************************************************************* //
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@ -0,0 +1,176 @@
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/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 2018 OpenCFD Ltd.
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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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.
|
||||
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||||
You should have received a copy of the GNU General Public License
|
||||
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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Class
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Foam::functionObjects::hydrostaticPressure
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Group
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grpInitialisationFunctionObjects
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Description
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Calculates and outputs the pressure fields p_rgh and ph_rgh
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Usage
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Example of function object specification to calculate hydrostatic pressure:
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\verbatim
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hydrostaticPressure1
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{
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type hydrostaticPressure;
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libs ("libinitialisationFunctionObjects.so");
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...
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}
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\endverbatim
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Where the entries comprise:
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\table
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Property | Description | Required | Default value
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log | Log to standard output | no | yes
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p_rgh | Name of p_rgh field | no | p_rgh
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ph_rgh | Name of ph_rgh field | no | ph_rgh
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pRef | Name of pressure ref field | no | pRef
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rho | Name of density field | no | rho
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U | Name of velocity field | no | U
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gh | Name of gravity*height volume field | no | gh
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ghf | Name of gravity*height surface field | no | ghf
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nCorrectors | Number of correctors when solving ph_rgh | no | 5
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\endtable
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Note
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Calculates the hydrostatic pressure on construction/re-initialisation;
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the execute and write functions are not used.
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SourceFiles
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hydrostaticPressure.C
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\*---------------------------------------------------------------------------*/
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#ifndef functionObjects_hydrostaticPressure_H
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#define functionObjects_hydrostaticPressure_H
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#include "fvMeshFunctionObject.H"
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#include "uniformDimensionedFields.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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namespace functionObjects
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{
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/*---------------------------------------------------------------------------*\
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Class hydrostaticPressure Declaration
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\*---------------------------------------------------------------------------*/
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class hydrostaticPressure
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:
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public fvMeshFunctionObject
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{
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protected:
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// Protected data
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//- Name of p - rho*g*h field, default is "p_rgh"
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word p_rghName_;
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//- Name of p_hydrostatic - rho*g*h field, default is "ph_rgh"
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word ph_rghName_;
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//- Name of uniform pressure reference field, default is "pRef"
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// Set to "none" to set to zero
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word pRefName_;
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//- Reference pressure if pRef is set to "none"
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scalar pRefValue_;
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//- Name of density field, default is "rho"
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word rhoName_;
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//- Name of velocity field, default is "ph_rgh"
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word UName_;
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//- Name of g*h volume field, default is "gh"
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word ghName_;
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//- Name of g*h surface field, default is "ghf"
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word ghfName_;
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//- Number of correctors when solving for ph_rgh
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label nCorrectors_;
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// Protected Member Functions
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//- Helper function to return the reference pressure
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// Returns zero if pRefName = none; otherwise returns the value
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// from the mesh database
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dimensionedScalar pRef() const;
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//- Calculate the fields and write
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void calculateAndWrite();
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public:
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//- Runtime type information
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TypeName("hydrostaticPressure");
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// Constructors
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//- Construct from Time and dictionary
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hydrostaticPressure
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(
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const word& name,
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const Time& runTime,
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const dictionary& dict
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);
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//- Destructor
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virtual ~hydrostaticPressure() = default;
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// Member Functions
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//- Read the hydrostaticPressure data
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virtual bool read(const dictionary& dict);
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//- Calculate the p_rgh field
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virtual bool execute();
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//- Write the p_rgh and derived fields
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virtual bool write();
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace functionObjects
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} // End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
|
||||
Reference in New Issue
Block a user