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December 12, 2006, 22:36 |
This question has been asked i
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Senior Member
Srinath Madhavan (a.k.a pUl|)
Join Date: Mar 2009
Location: Edmonton, AB, Canada
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This question has been asked in the past, however nobody has responded to it. I would appreciate if someone could help in this regard.
Why does the Courant number < 1 condition need to be respected if one uses pure Crank Nicolson (i.e. blending coefficient = 1 in OpenFOAM). Crank Nicolson is a second-order implicit scheme. Based on Von Neumann stability analysis, it should be possible to march in time using larger time-steps if one respects the condition below: Can someone explain? Am I wrong here?? |
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