# compressible interfoam PEqn.H

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 October 27, 2021, 01:43 compressible interfoam PEqn.H #1 Member   hari charan Join Date: Sep 2021 Location: India,hyderabad Posts: 96 Rep Power: 4 hello guys, I am hari . I am working on compressible interfoam . I couldn't understand the pressure equation used in pimple algorithm in PEqn.H in compressible inter foam. can anyone help me explaining it. i am attaching the equation below. p_rghEqnComp1 =pos(alpha1) *( ( fvc::ddt(alpha1, rho1) + fvc::div(alphaPhi1*rho1f) - (fvOptions(alpha1, mixture.thermo1().rho())&rho1) )/rho1 - fvc::ddt(alpha1) - fvc::div(alphaPhi1) + (alpha1/rho1) *correction ( psi1*fvm::ddt(p_rgh) + fvm::div(phid1, p_rgh) - fvm::Sp(fvc::div(phid1), p_rgh) ) );thanks and regards

 December 29, 2021, 06:19 #2 Member   hari charan Join Date: Sep 2021 Location: India,hyderabad Posts: 96 Rep Power: 4 I understood the Equation. The problem is solved. For people who have same doubt You can understand PEqn from below link Formulation in compressibleInterFoam . And also this link Formulation in compressibleInterFoam . Thanks and regards. Last edited by saicharan662000@gmail.com; January 5, 2022 at 07:27.

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