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2D flow over a Bump in channel

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Old   March 15, 2013, 14:31
Default 2D flow over a Bump in channel
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Ben Graves
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Hi guys,

I am currently trying to run a validation case of flow over a 2D bump in a channel, using simplefoam with the k-omega SST turbulence model. I am having trouble getting the results to match the existing results by NASA at the following website, http://turbmodels.larc.nasa.gov/bump.html. The analysis looks like it is going to converge and then after 2 to 3 thousand iterations taking most of a day the time step continuity errors blow up .

Attached is a picture of the skin friction coefficient before the blow up, the same result occurs during the entire length of the simulation, so something is obviously really wrong, I just cannot figure out what The grid was generated by NASA so I think it is safe to say that the grid is not the problem. Attached is the zipped file, any help or suggestions would be greatly appreciated. which has the boundary conditions file and all of the system files I have used

Thanks,
-Ben
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File Type: zip 2DbumpInChannel.zip (17.7 KB, 20 views)
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Old   March 16, 2013, 22:23
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Santiago Marquez Damian
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I think you should contact

http://www.cfd-online.com/Forums/members/nisi.html

he was solving this kind of problems with simpleFoam.

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