mirror of
https://develop.openfoam.com/Development/openfoam.git
synced 2025-11-28 03:28:01 +00:00
0c8fb634f0
- remove epsilonSmall, omegaSmall
- k0/epsilon0/omega0 become kMin/epsilonMin/omegaMin
- add qMin/zetaMin for consistency
These files still need some attention:
dynOneEqEddy.C
NonlinearKEShih.C
settlingFoam
BUG: incompressible::LESModels:dynOneEqEddy::correct()
- avoid tmp field destruction for consistency with the compressible
version
Possible TODO:
- set kMin to zero (instead of SMALL) and introduce kSmall
to avoid division by zero
75 lines
1.5 KiB
C
75 lines
1.5 KiB
C
if (turbulence)
|
|
{
|
|
if (mesh.changing())
|
|
{
|
|
y.correct();
|
|
}
|
|
|
|
dimensionedScalar kMin("kMin", k.dimensions(), SMALL);
|
|
dimensionedScalar epsilonMin("epsilonMin", epsilon.dimensions(), SMALL);
|
|
|
|
volScalarField divU = fvc::div(phi/fvc::interpolate(rho));
|
|
|
|
tmp<volTensorField> tgradU = fvc::grad(U);
|
|
volScalarField G = 2*mut*(tgradU() && dev(symm(tgradU())));
|
|
tgradU.clear();
|
|
|
|
volScalarField Gcoef =
|
|
Cmu*k/sigmak*(g & fvc::grad(rho))/(epsilon + epsilonMin);
|
|
|
|
#include "wallFunctions.H"
|
|
|
|
// Dissipation equation
|
|
fvScalarMatrix epsEqn
|
|
(
|
|
fvm::ddt(rho, epsilon)
|
|
+ fvm::div(phi, epsilon)
|
|
- fvm::laplacian
|
|
(
|
|
mut/sigmaEps + mul, epsilon,
|
|
"laplacian(DepsilonEff,epsilon)"
|
|
)
|
|
==
|
|
C1*G*epsilon/k
|
|
- fvm::SuSp(C1*(1.0 - C3)*Gcoef + (2.0/3.0*C1)*rho*divU, epsilon)
|
|
- fvm::Sp(C2*rho*epsilon/k, epsilon)
|
|
);
|
|
|
|
#include "wallDissipation.H"
|
|
|
|
epsEqn.relax();
|
|
epsEqn.solve();
|
|
|
|
bound(epsilon, epsilonMin);
|
|
|
|
|
|
// Turbulent kinetic energy equation
|
|
|
|
solve
|
|
(
|
|
fvm::ddt(rho, k)
|
|
+ fvm::div(phi, k)
|
|
- fvm::laplacian
|
|
(
|
|
mut/sigmak + mul, k,
|
|
"laplacian(DkEff,k)"
|
|
)
|
|
==
|
|
G
|
|
- fvm::SuSp(Gcoef + 2.0/3.0*rho*divU, k)
|
|
- fvm::Sp(rho*epsilon/k, k)
|
|
);
|
|
|
|
//FIXME: why no kEqn.relax()?
|
|
|
|
bound(k, kMin);
|
|
|
|
|
|
//- Re-calculate viscosity
|
|
mut = rho*Cmu*sqr(k)/(epsilon + epsilonMin);
|
|
|
|
#include "wallViscosity.H"
|
|
}
|
|
|
|
mu = mut + mul;
|