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-   -   interFoam vs icoFoam on a single-phase case (http://www.cfd-online.com/Forums/openfoam-solving/77949-interfoam-vs-icofoam-single-phase-case.html)

nuovodna July 8, 2010 06:23

interFoam vs icoFoam on a single-phase case
 
1 Attachment(s)
Hi, i m trying to simulate a single phase flow normal to a flat plate and analyzing the forceCoeffs. I ran the case on interFoam (setting one single value of alpha on the entire field and as i see in log file it doesn't solve the alpha equation as i expected) and icoFoam. The result is different: what is the cause of this divergence ?? I ran the lid driven cavity case using the two codes but in that case the solutions are the same.

interFoam: maxCo && maxAlphaCo = 0.5/0.05

I attach the graph


EDIT : using a constant deltaT in interFoam i obtain a solution equal to icoFoam's one

fengjq May 1, 2014 09:37

Hi,

I'm running into the similar issue of getting different results for a single phase flow case using the icofoam and interfoam solvers, when I tried to solve the problem of a gas jet perpendicularly impinging a plane with the same mesh. I wonder if anybody can explain what is wrong here. Thanks.

fengjq

Quote:

Originally Posted by nuovodna (Post 266344)
Hi, i m trying to simulate a single phase flow normal to a flat plate and analyzing the forceCoeffs. I ran the case on interFoam (setting one single value of alpha on the entire field and as i see in log file it doesn't solve the alpha equation as i expected) and icoFoam. The result is different: what is the cause of this divergence ?? I ran the lid driven cavity case using the two codes but in that case the solutions are the same.

interFoam: maxCo && maxAlphaCo = 0.5/0.05

I attach the graph


EDIT : using a constant deltaT in interFoam i obtain a solution equal to icoFoam's one



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