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August 15, 2004, 13:26
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CFL crietarion
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#1 |
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Guest
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hello please tell me about CFL crietarion.what is its principle.what is its importance in CFD. thanks a lot
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August 15, 2004, 15:14
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Re: CFL crietarion
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#2 |
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Guest
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A CFL criterion is a limit based on the stability of the numerical scheme used. It Plays an important role in explicit schemes. Any book on CFD should explain it.
cfl number = u*dt/dx |
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August 16, 2004, 23:29
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Re: CFL crietarion
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#3 |
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Guest
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It helps you to select the time step (dt) for a given grid space (dx).
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August 18, 2004, 03:04
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Re: CFL crietarion
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#4 |
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Guest
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actually, it limits max mesh length in order to ensure calculation stability.
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