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-   -   Euler explicit for PISO (http://www.cfd-online.com/Forums/openfoam-solving/68573-euler-explicit-piso.html)

gricci September 24, 2009 05:45

Euler explicit for PISO
 
Hello foamers,

I'm simulating the flow in a rectangular duct with an oscillating patch on the duct floor, the aim being to observe pressure oscillations.
At the moment, i'm using pimpleDyMFoam with the following settings in the fvSolution file:

PIMPLE
{
nOuterCorrectors 1;
nCorrectors 2;
nNonOrthogonalCorrectors 1;
}

which should be equivalent to PISO, isn't it?


As my Courant number should be smaller than 1 for PISO accuracy, I'd rather go in an explicit time integration to speed up the computation. Yet, I cannot quite understand how to do that. Could anyone kindly explain how to implement an Euler EXPLICIT time integration?

Thanks in advance.

gricci October 1, 2009 06:54

Is my question so dumb??

up to now i've changed
Code:

fvm::
with
Code:

fvc::
wherever possible in the solver's code. Is that all (at least for a laminar simulation)?


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