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uniformFixedMultiphaseHeatFluxFvPatchScalarField: Added fixesValue() returning false

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so that the energy-> temperature conversion in *heThermo updates the wall
temperature.
This commit is contained in:
Henry Weller
2023-07-15 17:42:03 +01:00
parent 472025d35b
commit 75106dcb62
2 changed files with 29 additions and 20 deletions
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40
applications/modules/multiphaseEuler/multiphaseThermophysicalTransportModels/derivedFvPatchFields/uniformFixedMultiphaseHeatFlux/uniformFixedMultiphaseHeatFluxFvPatchScalarField.C
View File

@ -42,11 +42,11 @@ uniformFixedMultiphaseHeatFluxFvPatchScalarField
q_(Function1<scalar>::New("q", dict)),
relax_(dict.lookupOrDefault<scalar>("relax", 1))
{
fvPatchScalarField::operator=(scalarField("value", dict, p.size()));
valueFraction() = 1;
refValue() = patchInternalField();
refGrad() = Zero;
operator==(patchInternalField());
}
@ -97,9 +97,9 @@ void Foam::uniformFixedMultiphaseHeatFluxFvPatchScalarField::updateCoeffs()
const phaseModel& thisPhase = fluid.phases()[internalField().group()];
// Sums of alpha*kappaEff
scalarField sumAlphaKappaEff(patch().size(), rootVSmall);
scalarField sumNotThisAlphaKappaEff(patch().size(), rootVSmall);
scalarField sumNotThisAlphaKappaEffT(patch().size(), rootVSmall);
scalarField sumNotThisAlphaKappaEff(patch().size(), 0);
scalarField sumNotThisAlphaKappaEffT(patch().size(), 0);
scalarField sumNotThisAlphaKappaEffTw(patch().size(), 0);
// Contributions from phases other than this one
forAll(fluid.phases(), phasei)
@ -114,9 +114,9 @@ void Foam::uniformFixedMultiphaseHeatFluxFvPatchScalarField::updateCoeffs()
const fvPatchScalarField& T =
phase.thermo().T().boundaryField()[patchi];
sumAlphaKappaEff += alphaKappaEff;
sumNotThisAlphaKappaEff += alphaKappaEff;
sumNotThisAlphaKappaEffT += alphaKappaEff*T.patchInternalField();
sumNotThisAlphaKappaEffTw += alphaKappaEff*T;
}
}
@ -124,34 +124,34 @@ void Foam::uniformFixedMultiphaseHeatFluxFvPatchScalarField::updateCoeffs()
const scalarField& alpha = thisPhase.boundaryField()[patchi];
const scalarField kappaEff(thisPhase.kappaEff(patchi));
const scalarField alphaKappaEff(alpha*kappaEff);
const fvPatchScalarField& T =
thisPhase.thermo().T().boundaryField()[patchi];
const fvPatchScalarField& T = *this;
sumAlphaKappaEff += alphaKappaEff;
sumNotThisAlphaKappaEff =
max
(
sumNotThisAlphaKappaEff,
rootSmall*kappaEff
);
// Calculate the phase average wall temperature
const scalarField Tw =
(sumNotThisAlphaKappaEffTw + alphaKappaEff*T)
/(sumNotThisAlphaKappaEff + alphaKappaEff);
valueFraction() =
sumNotThisAlphaKappaEff/(sumNotThisAlphaKappaEff + alphaKappaEff);
// Stabilisation for refValue
sumNotThisAlphaKappaEff = max(sumNotThisAlphaKappaEff, rootSmall*kappaEff);
sumNotThisAlphaKappaEffT =
max
(
sumNotThisAlphaKappaEffT,
rootSmall*kappaEff*T.patchInternalField()
);
// Mixed parameters
valueFraction() = sumNotThisAlphaKappaEff/sumAlphaKappaEff;
refValue() = sumNotThisAlphaKappaEffT/sumNotThisAlphaKappaEff;
refGrad() = q/max(alpha, rootSmall)/kappaEff;
refGrad() = q/(max(alpha, rootSmall)*kappaEff);
// Modify mixed parameters for under-relaxation
if (relax_ != 1)
{
const scalarField f(valueFraction());
valueFraction() = 1 - relax_*(1 - f);
refValue() = (f*relax_*refValue() + (1 - relax_)*T)/valueFraction();
refValue() = (f*relax_*refValue() + (1 - relax_)*Tw)/valueFraction();
//refGrad() = refGrad(); // No change
}

9
applications/modules/multiphaseEuler/multiphaseThermophysicalTransportModels/derivedFvPatchFields/uniformFixedMultiphaseHeatFlux/uniformFixedMultiphaseHeatFluxFvPatchScalarField.H
View File

@ -138,6 +138,15 @@ public:
// Member Functions
// Access
//- Allow manipulation of the boundary values
virtual bool fixesValue() const
{
return false;
}
// Evaluation functions
//- Update the coefficients associated with the patch field