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EEqn: Added rho*(U&g) source term

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Generally this term has a VERY small effect on temperature, it is only
important for low-speed buoyancy-dominated flows.

Resolves bug-report http://www.openfoam.org/mantisbt/view.php?id=1755

See also http://cfd.direct/openfoam/energy-equation/
This commit is contained in:
Henry Weller
2015-07-01 10:53:37 +01:00
parent b0719c3531
commit d0f15d4e3c
13 changed files with 50 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
applications/solvers/combustion/reactingFoam/EEqn.H
View File

@ -17,7 +17,8 @@
)
- fvm::laplacian(turbulence->alphaEff(), he)
==
reaction->Sh()
rho*(U&g)
+ reaction->Sh()
+ fvOptions(rho, he)
);

3
applications/solvers/heatTransfer/buoyantPimpleFoam/EEqn.H
View File

@ -17,7 +17,8 @@
)
- fvm::laplacian(turbulence->alphaEff(), he)
==
radiation->Sh(thermo)
rho*(U&g)
+ radiation->Sh(thermo)
+ fvOptions(rho, he)
);

3
applications/solvers/heatTransfer/buoyantSimpleFoam/EEqn.H
View File

@ -11,7 +11,8 @@
)
- fvm::laplacian(turbulence->alphaEff(), he)
==
radiation->Sh(thermo)
rho*(U&g)
+ radiation->Sh(thermo)
+ fvOptions(rho, he)
);

3
applications/solvers/heatTransfer/chtMultiRegionFoam/chtMultiRegionSimpleFoam/fluid/EEqn.H
View File

@ -11,7 +11,8 @@
)
- fvm::laplacian(turb.alphaEff(), he)
==
rad.Sh(thermo)
rho*(U&g)
+ rad.Sh(thermo)
+ fvOptions(rho, he)
);

2
applications/solvers/heatTransfer/chtMultiRegionFoam/chtMultiRegionSimpleFoam/fluid/setRegionFluidFields.H
View File

@ -29,5 +29,7 @@
const bool frozenFlow = frozenFlowFluid[i];
volScalarField& p_rgh = p_rghFluid[i];
const dimensionedVector& g = gFluid[i];
const volScalarField& gh = ghFluid[i];
const surfaceScalarField& ghf = ghfFluid[i];

3
applications/solvers/heatTransfer/chtMultiRegionFoam/fluid/EEqn.H
View File

@ -17,7 +17,8 @@
)
- fvm::laplacian(turb.alphaEff(), he)
==
rad.Sh(thermo)
rho*(U&g)
+ rad.Sh(thermo)
+ fvOptions(rho, he)
);

2
applications/solvers/heatTransfer/chtMultiRegionFoam/fluid/setRegionFluidFields.H
View File

@ -15,6 +15,8 @@
const volScalarField& psi = thermo.psi();
volScalarField& p_rgh = p_rghFluid[i];
const dimensionedVector& g = gFluid[i];
const volScalarField& gh = ghFluid[i];
const surfaceScalarField& ghf = ghfFluid[i];

3
applications/solvers/lagrangian/coalChemistryFoam/EEqn.H
View File

@ -17,7 +17,8 @@
)
- fvm::laplacian(turbulence->alphaEff(), he)
==
combustion->Sh()
rho*(U&g)
+ combustion->Sh()
+ coalParcels.Sh(he)
+ limestoneParcels.Sh(he)
+ radiation->Sh(thermo)

3
applications/solvers/lagrangian/reactingParcelFilmFoam/EEqn.H
View File

@ -17,7 +17,8 @@
)
- fvm::laplacian(turbulence->alphaEff(), he)
==
parcels.Sh(he)
rho*(U&g)
+ parcels.Sh(he)
+ surfaceFilm.Sh()
+ radiation->Sh(thermo)
+ combustion->Sh()

3
applications/solvers/lagrangian/reactingParcelFoam/EEqn.H
View File

@ -17,7 +17,8 @@
)
- fvm::laplacian(turbulence->alphaEff(), he)
==
parcels.Sh(he)
rho*(U&g)
+ parcels.Sh(he)
+ radiation->Sh(thermo)
+ combustion->Sh()
+ fvOptions(rho, he)

3
applications/solvers/lagrangian/reactingParcelFoam/simpleReactingParcelFoam/EEqn.H
View File

@ -11,7 +11,8 @@
)
- fvm::laplacian(turbulence->alphaEff(), he)
==
parcels.Sh(he)
rho*(U&g)
+ parcels.Sh(he)
+ radiation->Sh(thermo)
+ combustion->Sh()
+ fvOptions(rho, he)

30
applications/solvers/multiphase/reactingTwoPhaseEulerFoam/EEqns.H
View File

@ -6,40 +6,42 @@
heatTransfer = heatTransferPtr();
{
tmp<fvScalarMatrix> he1Eqn(phase1.heEqn());
tmp<fvScalarMatrix> E1Eqn(phase1.heEqn());
if (he1Eqn.valid())
if (E1Eqn.valid())
{
he1Eqn =
E1Eqn =
(
he1Eqn
E1Eqn
==
*heatTransfer[phase1.name()]
+ alpha1*rho1*(U1&g)
+ fvOptions(alpha1, rho1, phase1.thermo().he())
);
he1Eqn->relax();
fvOptions.constrain(he1Eqn());
he1Eqn->solve();
E1Eqn->relax();
fvOptions.constrain(E1Eqn());
E1Eqn->solve();
}
}
{
tmp<fvScalarMatrix> he2Eqn(phase2.heEqn());
tmp<fvScalarMatrix> E2eqn(phase2.heEqn());
if (he2Eqn.valid())
if (E2eqn.valid())
{
he2Eqn =
E2eqn =
(
he2Eqn
E2eqn
==
*heatTransfer[phase2.name()]
+ alpha2*rho2*(U2&g)
+ fvOptions(alpha2, rho2, phase2.thermo().he())
);
he2Eqn->relax();
fvOptions.constrain(he2Eqn());
he2Eqn->solve();
E2eqn->relax();
fvOptions.constrain(E2eqn());
E2eqn->solve();
}
}
}

22
applications/solvers/multiphase/twoPhaseEulerFoam/EEqns.H
View File

@ -7,7 +7,7 @@
volScalarField Kh(fluid.Kh());
fvScalarMatrix he1Eqn
fvScalarMatrix E1Eqn
(
fvm::ddt(alpha1, rho1, he1) + fvm::div(alphaRhoPhi1, he1)
- fvm::Sp(contErr1, he1)
@ -28,17 +28,18 @@
)
);
he1Eqn.relax();
E1Eqn.relax();
he1Eqn -=
E1Eqn -=
(
Kh*(thermo2.T() - thermo1.T())
+ Kh*he1/Cpv1
- fvm::Sp(Kh/Cpv1, he1)
+ alpha1*rho1*(U1&g)
+ fvOptions(alpha1, rho1, he1)
);
fvScalarMatrix he2Eqn
fvScalarMatrix E2Eqn
(
fvm::ddt(alpha2, rho2, he2) + fvm::div(alphaRhoPhi2, he2)
- fvm::Sp(contErr2, he2)
@ -59,21 +60,22 @@
)
);
he2Eqn.relax();
E2Eqn.relax();
he2Eqn -=
E2Eqn -=
(
Kh*(thermo1.T() - thermo2.T())
+ Kh*he2/Cpv2
- fvm::Sp(Kh/Cpv2, he2)
+ alpha2*rho2*(U2&g)
+ fvOptions(alpha2, rho2, he2)
);
fvOptions.constrain(he1Eqn);
he1Eqn.solve();
fvOptions.constrain(E1Eqn);
E1Eqn.solve();
fvOptions.constrain(he2Eqn);
he2Eqn.solve();
fvOptions.constrain(E2Eqn);
E2Eqn.solve();
thermo1.correct();
Info<< "min " << thermo1.T().name()