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non uniform mesh problem

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Old   August 27, 2010, 06:49
Default non uniform mesh problem
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Hi
I want to simulate a circle in free stream with openfoam. but when I used non uniform mesh or unstructured mesh, my flow field was affected before the circle. it made some vortex before the circle. I simulated this case in Fluent and this software solved it correctly and there were no effects before the circle.
Plz help me
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