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Meaning of critical points in surface flow

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Old   April 25, 2013, 00:02
Default Meaning of critical points in surface flow
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Hi everyone,

In most cfd programs, the limiting streamlines can be plotted on a solid surface which would reveal the critical points (saddles, nodes etc). I was wondering how these points can be interpreted. What do they mean in the 3d flow situation? If you could refer me to a reference that explains these points and their interpretations clearly I'd be very grateful.

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