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basicThermo: Cache thermal conductivity kappa rather than thermal diffusivity alpha

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Now that Cp and Cv are cached it is more convenient and consistent and slightly
more efficient to cache thermal conductivity kappa rather than thermal
diffusivity alpha which is not a fundamental property, the appropriate form
depending on the energy solved for.  kappa is converted into the appropriate
thermal diffusivity for the energy form solved for by dividing by the
corresponding cached heat capacity when required, which is efficient.
This commit is contained in:
Henry Weller
2022-01-10 20:19:00 +00:00
parent 1ae5288274
commit cc96abda03
39 changed files with 217 additions and 284 deletions
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21
src/thermophysicalModels/basic/basicThermo/basicThermo.C
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@ -2,7 +2,7 @@
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2011-2021 OpenFOAM Foundation
\\ / A nd | Copyright (C) 2011-2022 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
@ -302,18 +302,18 @@ Foam::basicThermo::implementation::implementation
mesh
),
alpha_
kappa_
(
IOobject
(
phasePropertyName("thermo:alpha", phaseName),
phasePropertyName("thermo:kappa", phaseName),
mesh.time().timeName(),
mesh,
IOobject::READ_IF_PRESENT,
IOobject::NO_WRITE
),
mesh,
dimensionedScalar(dimensionSet(1, -1, -1, 0, 0), Zero)
dimensionedScalar(dimEnergy/dimTime/dimLength/dimTemperature, Zero)
),
dpdt_(lookupOrDefault<Switch>("dpdt", true))
@ -395,18 +395,9 @@ Foam::volScalarField& Foam::basicThermo::implementation::T()
}
const Foam::volScalarField& Foam::basicThermo::implementation::alpha() const
const Foam::volScalarField& Foam::basicThermo::implementation::kappa() const
{
return alpha_;
}
const Foam::scalarField& Foam::basicThermo::implementation::alpha
(
const label patchi
) const
{
return alpha_.boundaryField()[patchi];
return kappa_;
}