Commit fd665b4a authored by mattijs's avatar mattijs
Browse files

ENH: overset: Initial release of overset capability.

Adds overset discretisation to selected physics:
- diffusion : overLaplacianDyMFoam
- incompressible steady : overSimpleFoam
- incompressible transient : overPimpleDyMFoam
- compressible transient: overRhoPimpleDyMFoam
- two-phase VOF: overInterDyMFoam

The overset method chosen is a parallel, fully implicit implementation
whereby the interpolation (from donor to acceptor) is inserted as an
adapted discretisation on the donor cells, such that the resulting matrix
can be solved using the standard linear solvers.

Above solvers come with a set of tutorials, showing how to create and set-up
simple simulations from scratch.
parent 69deec2e
......@@ -13,7 +13,7 @@ OpenCFD Ltd grants use of the OpenFOAM trademark by Third Parties on a licence b
Please [contact OpenCFD](http://www.openfoam.com/contact) if you have any questions on the use of the OpenFOAM trademark.
Violations of the Trademark are continuously monitored, and will be duly prosecuted.
Violations of the Trademark are continuously monitored, and will be duly prosecuted.
# Useful Links
......
laplacianDyMFoam.C
EXE = $(FOAM_APPBIN)/overLaplacianDyMFoam
EXE_INC = \
-I$(LIB_SRC)/finiteVolume/lnInclude \
-I$(LIB_SRC)/dynamicFvMesh/lnInclude \
-I$(LIB_SRC)/overset/lnInclude \
-I$(LIB_SRC)/meshTools/lnInclude
EXE_LIBS = \
-loverset
Info<< "Reading field T\n" << endl;
volScalarField T
(
IOobject
(
"T",
runTime.timeName(),
mesh,
IOobject::MUST_READ,
IOobject::AUTO_WRITE
),
mesh
);
// Add overset specific interpolations
{
dictionary oversetDict;
oversetDict.add("T", true);
const_cast<dictionary&>
(
mesh.schemesDict()
).add
(
"oversetInterpolationRequired",
oversetDict,
true
);
}
Info<< "Reading transportProperties\n" << endl;
IOdictionary transportProperties
(
IOobject
(
"transportProperties",
runTime.constant(),
mesh,
IOobject::MUST_READ_IF_MODIFIED,
IOobject::NO_WRITE
)
);
Info<< "Reading diffusivity DT\n" << endl;
dimensionedScalar DT
(
transportProperties.lookup("DT")
);
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2015 OpenFOAM Foundation
\\/ M anipulation | Copyright (C) 2016-2017 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/>.
Application
laplacianFoam
Group
grpBasicSolvers
Description
Laplace equation solver for a scalar quantity.
\heading Solver details
The solver is applicable to, e.g. for thermal diffusion in a solid. The
equation is given by:
\f[
\ddt{T} = \div \left( D_T \grad T \right)
\f]
Where:
\vartable
T | Scalar field which is solved for, e.g. temperature
D_T | Diffusion coefficient
\endvartable
\heading Required fields
\plaintable
T | Scalar field which is solved for, e.g. temperature
\endplaintable
\*---------------------------------------------------------------------------*/
#include "fvCFD.H"
#include "fvOptions.H"
#include "simpleControl.H"
#include "dynamicFvMesh.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
int main(int argc, char *argv[])
{
#include "setRootCase.H"
#include "createTime.H"
#include "createNamedDynamicFvMesh.H"
simpleControl simple(mesh);
#include "createFields.H"
#include "createFvOptions.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Info<< "\nCalculating temperature distribution\n" << endl;
while (simple.loop())
{
Info<< "Time = " << runTime.timeName() << nl << endl;
mesh.update();
while (simple.correctNonOrthogonal())
{
fvScalarMatrix TEqn
(
fvm::ddt(T) - fvm::laplacian(DT, T)
==
fvOptions(T)
);
fvOptions.constrain(TEqn);
TEqn.solve();
fvOptions.correct(T);
}
#include "write.H"
Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
<< " ClockTime = " << runTime.elapsedClockTime() << " s"
<< nl << endl;
}
Info<< "End\n" << endl;
return 0;
}
// ************************************************************************* //
if (runTime.outputTime())
{
volVectorField gradT(fvc::grad(T));
volScalarField gradTx
(
IOobject
(
"gradTx",
runTime.timeName(),
mesh,
IOobject::NO_READ,
IOobject::AUTO_WRITE
),
gradT.component(vector::X)
);
volScalarField gradTy
(
IOobject
(
"gradTy",
runTime.timeName(),
mesh,
IOobject::NO_READ,
IOobject::AUTO_WRITE
),
gradT.component(vector::Y)
);
volScalarField gradTz
(
IOobject
(
"gradTz",
runTime.timeName(),
mesh,
IOobject::NO_READ,
IOobject::AUTO_WRITE
),
gradT.component(vector::Z)
);
runTime.write();
}
rhoPimpleDyMFoam.C
EXE = $(FOAM_APPBIN)/overRhoPimpleDyMFoam
EXE_INC = \
-I.. \
-I$(LIB_SRC)/transportModels/compressible/lnInclude \
-I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \
-I$(LIB_SRC)/TurbulenceModels/turbulenceModels/lnInclude \
-I$(LIB_SRC)/TurbulenceModels/compressible/lnInclude \
-I$(LIB_SRC)/finiteVolume/cfdTools \
-I$(LIB_SRC)/finiteVolume/lnInclude \
-I$(LIB_SRC)/meshTools/lnInclude \
-I$(LIB_SRC)/sampling/lnInclude \
-I$(LIB_SRC)/dynamicFvMesh/lnInclude \
-I$(LIB_SRC)/dynamicMesh/lnInclude \
-I$(LIB_SRC)/overset/lnInclude \
-I$(LIB_SRC)/meshTools/lnInclude \
EXE_LIBS = \
-lcompressibleTransportModels \
-lfluidThermophysicalModels \
-lspecie \
-lturbulenceModels \
-lcompressibleTurbulenceModels \
-loverset \
-lfvOptions \
-ldynamicFvMesh \
-ltopoChangerFvMesh
CorrectPhi
(
U,
phi,
p,
rho,
psi,
dimensionedScalar("rAUf", dimTime, 1),
divrhoU,
pimple
);
#include "createTimeControls.H"
bool correctPhi
(
pimple.dict().lookupOrDefault<Switch>("correctPhi", true)
);
bool checkMeshCourantNo
(
pimple.dict().lookupOrDefault<Switch>("checkMeshCourantNo", false)
);
Info<< "Reading thermophysical properties\n" << endl;
autoPtr<psiThermo> pThermo
(
psiThermo::New(mesh)
);
psiThermo& thermo = pThermo();
thermo.validate(args.executable(), "h", "e");
volScalarField& p = thermo.p();
const volScalarField& psi = thermo.psi();
volScalarField rho
(
IOobject
(
"rho",
runTime.timeName(),
mesh,
IOobject::READ_IF_PRESENT,
IOobject::AUTO_WRITE
),
thermo.rho()
);
Info<< "Reading field U\n" << endl;
volVectorField U
(
IOobject
(
"U",
runTime.timeName(),
mesh,
IOobject::MUST_READ,
IOobject::AUTO_WRITE
),
mesh
);
#include "compressibleCreatePhi.H"
dimensionedScalar rhoMax
(
dimensionedScalar::lookupOrDefault
(
"rhoMax",
pimple.dict(),
dimDensity,
GREAT
)
);
dimensionedScalar rhoMin
(
dimensionedScalar::lookupOrDefault
(
"rhoMin",
pimple.dict(),
dimDensity,
0
)
);
Info<< "Creating turbulence model\n" << endl;
autoPtr<compressible::turbulenceModel> turbulence
(
compressible::turbulenceModel::New
(
rho,
U,
phi,
thermo
)
);
mesh.setFluxRequired(p.name());
Info<< "Creating field dpdt\n" << endl;
volScalarField dpdt
(
IOobject
(
"dpdt",
runTime.timeName(),
mesh
),
mesh,
dimensionedScalar("dpdt", p.dimensions()/dimTime, 0)
);
Info<< "Creating field kinetic energy K\n" << endl;
volScalarField K("K", 0.5*magSqr(U));
//- Overset specific
// Add solver-specific interpolations
{
dictionary oversetDict;
oversetDict.add("U", true);
oversetDict.add("p", true);
oversetDict.add("HbyA", true);
oversetDict.add("grad(p)", true);
const_cast<dictionary&>
(
mesh.schemesDict()
).add
(
"oversetInterpolationRequired",
oversetDict,
true
);
}
// Mask field for zeroing out contributions on hole cells
#include "createCellMask.H"
rho = thermo.rho();
rho = max(rho, rhoMin);
rho = min(rho, rhoMax);
rho.relax();
surfaceScalarField faceMask(localMin<scalar>(mesh).interpolate(cellMask));
volScalarField rAU(1.0/UEqn.A());
surfaceScalarField rhorAUf("rhorAUf", faceMask*fvc::interpolate(rho*rAU));
volVectorField HbyA("HbyA", constrainHbyA(rAU*UEqn.H(), U, p));
//mesh.interpolate(HbyA);
if (pimple.nCorrPISO() <= 1)
{
tUEqn.clear();
}
if (pimple.transonic())
{
surfaceScalarField phid
(
"phid",
fvc::interpolate(psi)
*(
fvc::flux(HbyA)
+ rhorAUf*fvc::ddtCorr(rho, U, rhoUf)/fvc::interpolate(rho)
)
);
fvc::makeRelative(phid, psi, U);
MRF.makeRelative(fvc::interpolate(psi), phid);
while (pimple.correctNonOrthogonal())
{
fvScalarMatrix pEqn
(
fvm::ddt(psi, p)
+ fvm::div(phid, p)
- fvm::laplacian(rhorAUf, p)
==
fvOptions(psi, p, rho.name())
);
pEqn.solve(mesh.solver(p.select(pimple.finalInnerIter())));
if (pimple.finalNonOrthogonalIter())
{
phi == pEqn.flux();
}
}
}
else
{
surfaceScalarField phiHbyA
(
"phiHbyA",
fvc::flux(rho*HbyA)
+ rhorAUf*fvc::ddtCorr(rho, U, rhoUf)
);
fvc::makeRelative(phiHbyA, rho, U);
MRF.makeRelative(fvc::interpolate(rho), phiHbyA);
// Update the pressure BCs to ensure flux consistency
constrainPressure(p, rho, U, phiHbyA, rhorAUf, MRF);
while (pimple.correctNonOrthogonal())
{
// Pressure corrector
fvScalarMatrix pEqn
(
fvm::ddt(psi, p)
+ fvc::div(phiHbyA)
- fvm::laplacian(rhorAUf, p)
==
fvOptions(psi, p, rho.name())
);
pEqn.solve(mesh.solver(p.select(pimple.finalInnerIter())));
if (pimple.finalNonOrthogonalIter())
{
phi = phiHbyA + pEqn.flux();
}
}
}
#include "rhoEqn.H"
#include "compressibleContinuityErrs.H"
// Explicitly relax pressure for momentum corrector
p.relax();
// Recalculate density from the relaxed pressure
rho = thermo.rho();
rho = max(rho, rhoMin);
rho = min(rho, rhoMax);
rho.relax();
Info<< "rho max/min : " << max(rho).value()
<< " " << min(rho).value() << endl;
volVectorField gradP(fvc::grad(p));
//mesh.interpolate(gradP);
U = HbyA - rAU*cellMask*gradP;
U.correctBoundaryConditions();
fvOptions.correct(U);
K = 0.5*magSqr(U);
{
rhoUf = fvc::interpolate(rho*U);
surfaceVectorField n(mesh.Sf()/mesh.magSf());
rhoUf += n*(fvc::absolute(phi, rho, U)/mesh.magSf() - (n & rhoUf));
}
if (thermo.dpdt())
{
dpdt = fvc::ddt(p);
if (mesh.moving())
{
dpdt -= fvc::div(fvc::meshPhi(rho, U), p);
}
}
#include "readTimeControls.H"
correctPhi = pimple.dict().lookupOrDefault<Switch>("correctPhi", true);
checkMeshCourantNo =
pimple.dict().lookupOrDefault<Switch>("checkMeshCourantNo", false);
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2015 OpenFOAM Foundation
\\/ M anipulation | Copyright (C) 2016-2017 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/>.
Application
rhoPimpleFoam
Group
grpCompressibleSolvers grpMovingMeshSolvers
Description
Transient solver for laminar or turbulent flow of compressible fluids
for HVAC and similar applications.
Uses the flexible PIMPLE (PISO-SIMPLE) solution for time-resolved and
pseudo-transient simulations.
\*---------------------------------------------------------------------------*/
#include "fvCFD.H"
#include "dynamicFvMesh.H"
#include "psiThermo.H"
#include "turbulentFluidThermoModel.H"
#include "bound.H"
#include "pimpleControl.H"
#include "CorrectPhi.H"
#include "fvOptions.H"
#include "localEulerDdtScheme.H"
#include "fvcSmooth.H"