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interFoam vs icoFoam on a single-phase case

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Old   July 8, 2010, 06:23
Default interFoam vs icoFoam on a single-phase case
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Emanuele
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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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File Type: png icoVSinter.png (8.5 KB, 26 views)

Last edited by nuovodna; July 13, 2010 at 14:59. Reason: Problem solved
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Old   May 1, 2014, 09:37
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James Feng
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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 View Post
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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