Files
openfoam/applications/solvers/combustion/XiFoam/UEqn.H
Henry Weller 85c79d8398 fvOptions: New buoyancyForce and buoyancyEnergy
Provides run-time selection of buoyancy sources for compressible solvers

Replaces the built-in buoyancy sources in XiFoam, reactingFoam and
rhoReactingFoam.

e.g. in constant/fvOptions specify

momentumSource
{
    type            buoyancyForce;

    buoyancyForceCoeffs
    {
        fieldNames      (U);
    }
}

and optionally specify the buoyancy energy source in the enthalpy
equation:

energySource
{
    type            buoyancyEnergy;

    buoyancyEnergyCoeffs
    {
        fieldNames      (h);
    }
}

or internal energy equation

energySource
{
    type            buoyancyEnergy;

    buoyancyEnergyCoeffs
    {
        fieldNames      (e);
    }
}
2015-11-23 09:29:10 +00:00

23 lines
409 B
C

MRF.correctBoundaryVelocity(U);
fvVectorMatrix UEqn
(
fvm::ddt(rho, U) + fvm::div(phi, U)
+ MRF.DDt(rho, U)
+ turbulence->divDevRhoReff(U)
==
fvOptions(rho, U)
);
UEqn.relax();
fvOptions.constrain(UEqn);
if (pimple.momentumPredictor())
{
solve(UEqn == -fvc::grad(p));
fvOptions.correct(U);
K = 0.5*magSqr(U);
}