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fvDOM radiation model: Removed unreliable 'cacheDiv' option

Browse Source 
Resolves bug-report http://bugs.openfoam.org/view.php?id=2182
This commit is contained in:
Henry Weller
2016-08-17 17:12:20 +01:00
parent b2e9655495
commit 30e456a641
9 changed files with 17 additions and 117 deletions
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29
src/thermophysicalModels/radiation/radiationModels/fvDOM/fvDOM/fvDOM.C
View File

@ -190,31 +190,6 @@ void Foam::radiation::fvDOM::initialise()
Info<< "fvDOM : Allocated " << IRay_.size()
<< " rays with average orientation:" << nl;
if (cacheDiv_)
{
Info<< "Caching div fvMatrix..."<< endl;
for (label lambdaI = 0; lambdaI < nLambda_; lambdaI++)
{
fvRayDiv_[lambdaI].setSize(nRay_);
forAll(IRay_, rayId)
{
const surfaceScalarField Ji(IRay_[rayId].dAve() & mesh_.Sf());
const volScalarField& iRayLambdaI =
IRay_[rayId].ILambda(lambdaI);
fvRayDiv_[lambdaI].set
(
rayId,
new fvScalarMatrix
(
fvm::div(Ji, iRayLambdaI, "div(Ji,Ii_h)")
)
);
}
}
}
forAll(IRay_, rayId)
{
if (omegaMax_ < IRay_[rayId].omega())
@ -308,8 +283,6 @@ Foam::radiation::fvDOM::fvDOM(const volScalarField& T)
IRay_(0),
convergence_(coeffs_.lookupOrDefault<scalar>("convergence", 0.0)),
maxIter_(coeffs_.lookupOrDefault<label>("maxIter", 50)),
fvRayDiv_(nLambda_),
cacheDiv_(coeffs_.lookupOrDefault<bool>("cacheDiv", false)),
omegaMax_(0)
{
initialise();
@ -397,8 +370,6 @@ Foam::radiation::fvDOM::fvDOM
IRay_(0),
convergence_(coeffs_.lookupOrDefault<scalar>("convergence", 0.0)),
maxIter_(coeffs_.lookupOrDefault<label>("maxIter", 50)),
fvRayDiv_(nLambda_),
cacheDiv_(coeffs_.lookupOrDefault<bool>("cacheDiv", false)),
omegaMax_(0)
{
initialise();

19
src/thermophysicalModels/radiation/radiationModels/fvDOM/fvDOM/fvDOM.H
View File

@ -44,9 +44,6 @@ Description
convergence 1e-3; // convergence criteria for radiation
//iteration
maxIter 4; // maximum number of iterations
cacheDiv true; // cache the div of the RTE equation.
//NOTE: Caching div is "only" accurate if the upwind scheme is used
//in div(Ji,Ii_h)
}
solverFreq 1; // Number of flow iterations per radiation iteration
@ -130,12 +127,6 @@ class fvDOM
//- Maximum number of iterations
label maxIter_;
//- List of cached fvMatrices for rays
List<PtrList<fvScalarMatrix>>fvRayDiv_;
//- Cache convection div matrix
bool cacheDiv_;
//- Maximum omega weight
scalar omegaMax_;
@ -248,16 +239,6 @@ public:
//- Const access to black body
inline const blackBodyEmission& blackBody() const;
//- Const access to cached fvMatrix
inline const fvScalarMatrix& fvRayDiv
(
const label lambdaI,
const label rayId
) const;
//- Caching div(Ji, Ilamda)
inline bool cacheDiv() const;
//- Return omegaMax
inline scalar omegaMax() const;
};

18
src/thermophysicalModels/radiation/radiationModels/fvDOM/fvDOM/fvDOMI.H
View File

@ -2,7 +2,7 @@
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2015 OpenFOAM Foundation
\\ / A nd | Copyright (C) 2011-2016 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
@ -110,22 +110,6 @@ Foam::radiation::fvDOM::blackBody() const
}
inline const Foam::fvScalarMatrix& Foam::radiation::fvDOM::fvRayDiv
(
const label rayId,
const label lambdaI
) const
{
return fvRayDiv_[lambdaI][rayId];
}
inline bool Foam::radiation::fvDOM::cacheDiv() const
{
return cacheDiv_;
}
inline Foam::scalar Foam::radiation::fvDOM::omegaMax() const
{
return omegaMax_;

28
src/thermophysicalModels/radiation/radiationModels/fvDOM/radiativeIntensityRay/radiativeIntensityRay.C
View File

@ -214,13 +214,9 @@ Foam::scalar Foam::radiation::radiativeIntensityRay::correct()
{
const volScalarField& k = dom_.aLambda(lambdaI);
tmp<fvScalarMatrix> IiEq;
if (!dom_.cacheDiv())
{
const surfaceScalarField Ji(dAve_ & mesh_.Sf());
IiEq =
fvScalarMatrix IiEq
(
fvm::div(Ji, ILambda_[lambdaI], "div(Ji,Ii_h)")
+ fvm::Sp(k*omega_, ILambda_[lambdaI])
@ -234,30 +230,12 @@ Foam::scalar Foam::radiation::radiativeIntensityRay::correct()
+ absorptionEmission_.E(lambdaI)/4
)
);
}
else
{
IiEq =
(
dom_.fvRayDiv(myRayId_, lambdaI)
+ fvm::Sp(k*omega_, ILambda_[lambdaI])
==
1.0/constant::mathematical::pi*omega_
* (
// Remove aDisp from k
(k - absorptionEmission_.aDisp(lambdaI))
*blackBody_.bLambda(lambdaI)
+ absorptionEmission_.E(lambdaI)/4
)
);
}
IiEq.ref().relax();
IiEq.relax();
const solverPerformance ILambdaSol = solve
(
IiEq.ref(),
IiEq,
mesh_.solver("Ii")
);

1
tutorials/combustion/fireFoam/les/flameSpreadWaterSuppressionPanel/constant/radiationProperties
View File

@ -26,7 +26,6 @@ fvDOMCoeffs
nTheta 2; // polar angles in PI (from Z to X-Y plane)
convergence 1e-2; // convergence criteria for radiation iteration
maxIter 3; // maximum number of iterations
cacheDiv true; // cache the div of the RTE equation.
}
// Number of flow iterations per radiation iteration

4
tutorials/combustion/fireFoam/les/oppositeBurningPanels/constant/radiationProperties
View File

@ -26,10 +26,6 @@ fvDOMCoeffs
nTheta 6; // polar angles in PI (from Z to X-Y plane)
convergence 0.05; // convergence criteria for radiation iteration
maxIter 3; // maximum number of iterations
cacheDiv true; // cache the div of the RTE equation.
// NOTE: Caching div is "only" accurate if the upwind scheme is used in
// div(Ji,Ii_h)
}
// Number of flow iterations per radiation iteration

4
tutorials/combustion/fireFoam/les/smallPoolFire2D/constant/radiationProperties
View File

@ -25,10 +25,6 @@ fvDOMCoeffs
nTheta 0; // polar angles in PI (from Z to X-Y plane)
convergence 1e-2; // convergence criteria for radiation iteration
maxIter 4; // maximum number of iterations
cacheDiv true; // cache the div of the RTE equation.
// NOTE: Caching div is "only" accurate if the upwind scheme is used in
// div(Ji,Ii_h)
}
// Number of flow iterations per radiation iteration

4
tutorials/combustion/fireFoam/les/smallPoolFire3D/constant/radiationProperties
View File

@ -26,10 +26,6 @@ fvDOMCoeffs
nTheta 2; // polar angles in PI (from Z to X-Y plane)
convergence 1e-1; // convergence criteria for radiation iteration
maxIter 1; // maximum number of iterations
cacheDiv true; // cache the div of the RTE equation.
// NOTE: Caching div is "only" accurate if the upwind scheme is used in
// div(Ji,Ii_h)
}
// Number of flow iterations per radiation iteration

1
tutorials/heatTransfer/buoyantSimpleFoam/hotRadiationRoomFvDOM/constant/radiationProperties
View File

@ -25,7 +25,6 @@ fvDOMCoeffs
nTheta 5; // polar angles in PI (from Z to X-Y plane)
convergence 1e-3; // convergence criteria for radiation iteration
maxIter 10; // maximum number of iterations
cacheDiv false;
}
// Number of flow iterations per radiation iteration