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p_rghDDtEqn: what is the purpose?

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Old   August 22, 2023, 06:09
Default p_rghDDtEqn: what is the purpose?
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Horst van Gras
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I'm wondering what is the role of p_rghDDtEqn in the pEqu.H from the buoyantPimpleFoam. Is there a relation to the Navier-Stokes equation?


https://develop.openfoam.com/Develop...pleFoam/pEqn.H



Code:
fvScalarMatrix p_rghDDtEqn (     fvc::ddt(rho) + psi*correction(fvm::ddt(p_rgh))   + fvc::div(phiHbyA)   ==     fvOptions(psi, p_rgh, rho.name()) );
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