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Drag levels double after switching to transient |
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May 17, 2013, 14:56
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Drag levels double after switching to transient
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Join Date: Aug 2011
Posts: 89
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I am encountering a problem where I am calculating drag over a somewhat bluff body. There is separated flow in the region behind the object and vortex shedding ensues. When I simulate this in steady state mode, the drag oscillated due to the shedding but I get an average close to experiment. When I switch to transient after I start calculated drag still oscillates but the magnitude of average deaf roughly doubles. Anyone seen this before? We can't figure this out on my end
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| drag coefficient, steady and unsteady state, transient analysis |
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