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CFL number specification sonic/supersonic flow

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Old   January 16, 2009, 12:14
Default CFL number specification sonic/supersonic flow
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gr
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Is there criteria for picking a cfl number for a sonic/supersonic flow? What is the effect of choosing a cfl number too big or small for the same grids? Is there are an optimum value? I would appreciate any thoughts or references on this.

Thanks in advance gr
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