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Compression with SprayEngineFoam

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Old   December 10, 2015, 05:57
Default Compression with SprayEngineFoam
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Hey everyone!

I am trying to simulate a Diesel-Engine with sprayEngineFoam using Openfoam 3.0. I have a mesh that works fine with engineFoam, but sprayEngineFoam leads to a weird temperature distribution during compression. As you can see in the attachment, at -10 degree CA, the temperature in the mold of the piston is 500K higher than in the liner.

Does anybody know why this happens? As I said, mesh and BC work fine with the engineFoam- solver (no temperature gradients during compression).

Thanks in advance,
Robert



Temperature_-10CA.jpg
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Old   December 10, 2015, 09:03
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Apparently sprayEngineFoam calculates a wrong pressure- it should be around 40bar, but actually calculates 400bar . So there must be a problem with the solver?
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