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Exploding value in one cell

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Old   June 23, 2015, 10:46
Default Exploding value in one cell
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James F.
Join Date: May 2015
Posts: 24
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NoradFirst2 is an unknown quantity at this point
Hello Foamers,

I've been using OpenFoam for two months now and been running a few cases for my company.

The complexity of my geometry is incresing but not the CPU of my computer... I am facing a new kind of problem: the U value of some cells is randomly exploding on edges... U should never be above 80m/s in my problem. I tryed to improve the meshing where the value of U were exploding but as soon as I solve the problem somewhere it appears somewhere else and I feel like wasting my time.

Regardless of geometry/BC, is there a way to limit U or the way U is locally increasing?

I already use "CellMDLimitedGrad 1" in my fvSchemes but it seems useless...

Find attached samples from paraFoam with my U field.

Thanks for helping! Don't hesitate if you need more info.
Attached Images
File Type: jpg Error.jpg (17.8 KB, 7 views)
File Type: jpg Error2.jpg (19.4 KB, 7 views)
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