Foam::tmp<Foam::volScalarField>
Foam::kineticTheoryModels::granularPressureModels::Chao::
granularPressureCoeffPrime
(
const phaseModel& phase1,
const phaseModel& phase2,
const volScalarField& Theta1,
const volScalarField& Theta2,
const volScalarField& g0,
const volScalarField& g0prime,
const dimensionedScalar& e
) const
{
volScalarField m0
(
constant::mathematical::pi/6.0
*(phase1.rho()*pow3(phase1.d()) + phase2.rho()*pow3(phase2.d()))
);
tmp<volScalarField> pCoeff
(
2.0*phase2*constant::mathematical::pi/(3.0*m0)*phase1.rho()
*phase2.rho()*(1.0 + e)*pow3((phase1.d() + phase2.d())/2.0)
*(Theta1 + Theta2 + 0.2*magSqr(phase1.U() - phase2.U()))
);
if (&phase1 == &phase2)
{
return pCoeff*(2.0*g0 + phase1*g0prime);
}
else
{
return pCoeff*(g0 + phase1*g0prime);
}
}
Foam::tmp<Foam::volScalarField>
Foam::kineticTheoryModels::radialModels::Gao::g0
(
const phaseModel& phase1,
const phaseModel& phase2
) const
{
volScalarField g1(1.0/(1.0 - cbrt(min(phase1/phase1.alphaMax(), 0.999))));
volScalarField g2(1.0/(1.0 - cbrt(min(phase2/phase2.alphaMax(), 0.999))));
return (phase1.d()*g1 + phase2.d()*g2)/(phase1.d() + phase2.d());
}
Foam::tmp<Foam::volScalarField>
Foam::kineticTheoryModels::radialModels::Gao::g0prime
(
const phaseModel& phase1,
const phaseModel& phase2
) const
{
volScalarField aByaMax
(
cbrt(min(max(phase1, scalar(1e-3))/phase1.alphaMax(), 0.999))
);
return
(1.0/(3.0*phase1.alphaMax()))/sqr(aByaMax - sqr(aByaMax))
*phase1.d()/(phase1.d() + phase2.d());
}
