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February 27, 2020, 07:42
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Steady vs transient
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#1 |
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New Member
Rohan Iyer
Join Date: Jan 2020
Posts: 2
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Can anybody tell me why when I run flow over a cylinder at Re=200 in steady and unsteady cases the results differ?
Or should they not differ? I am getting less amplitude for lift in case of steady but in unsteady case I'm getting validation from literature |
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February 27, 2020, 10:30
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Regime
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#2 |
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Senior Member
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If your Re is based on cylinder diameter, then you are in the transition regime. Flow is not steady, hence, only transient simulation makes sense. In any case, transient results are better than steady-state, provided it has been run for longer than characteristic time.
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Regards, Vinerm PM to be used if and only if you do not want something to be shared publicly. PM is considered to be of the least priority. |
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February 27, 2020, 21:07
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#3 | |
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New Member
Rohan Iyer
Join Date: Jan 2020
Posts: 2
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Quote:
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| flow across a cylinder, low reynold's number, steady and unsteady state |
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