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buoyantPimpleFoam's equations.

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Old   June 30, 2015, 11:53
Default buoyantPimpleFoam's equations.
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Dongyue Li
Join Date: Jun 2012
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Hello guys,

Right now Im working on buoyant driven force flow. I have a miner confusion about the equations implemented in buoyantPimpleFoam.

We know that:

rho1 = rho0 + psi*(p1-p0)
= rho0 + psi*(p_rgh1 - p_rgh0 + rho1 g h - rho0 g h) // neglected?

But in the code, it is:

rho1 = rho0 + psi*(p_rgh1 - p_rgh0)

fvScalarMatrix p_rghDDtEqn
        fvc::ddt(rho) + psi*correction(fvm::ddt(p_rgh))
      + fvc::div(phiHbyA)
        fvOptions(psi, p_rgh,
Anybody knows the reason of neglecting the last two terms?



Its neglected. more info:
Im the translator of OpenFOAM User Guide Chinese Edition! But always newbie on CFD.

Last edited by sharonyue; July 2, 2015 at 10:42.
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