CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   OpenFOAM Running, Solving & CFD (http://www.cfd-online.com/Forums/openfoam-solving/)
-   -   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

 All times are GMT -4. The time now is 14:26.