[avinashjagdale]

hello,
How does openfoam treat non orthogonal meshes using "nonOrthogonalcorrectors" ?
What does it actually do?
Thank You.

[alexeym]

Hi,

You'd like to see a piece of code (this example is from pimpleFoam's pEqn.H)

// Non-orthogonal pressure corrector loop
while (pimple.correctNonOrthogonal())
{
    // Pressure corrector
    fvScalarMatrix pEqn
    (
        fvm::laplacian(rAU, p) == fvc::div(phiHbyA)
    );

    pEqn.setReference(pRefCell, pRefValue);

    pEqn.solve(mesh.solver(p.select(pimple.finalInnerIter())));

    if (pimple.finalNonOrthogonalIter())
    {
        phi = phiHbyA - pEqn.flux();
    }
}

or something else?

[avinashjagdale]

hi alexey ,
I am new to OpenFOAM . I came across this while going through UserGuide.
Hence I won't understand much from the Code.
I have read about the calculation of diffusion and convection terms for non-ortho grids. Can u please give an explanation in non-code format?
Thank you.

[alexeym]

I can only suggest you reading H. Jasak's thesis - http://powerlab.fsb.hr/ped/kturbo/Op...jeJasakPhD.pdf

[avinashjagdale]

thank you.