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define the right model

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Old   February 15, 2011, 10:59
Default define the right model
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what is the different between the steady and unsteady command?

i tried to solve a simple 2-d problem of a beam section:

with the steady solution a k-eps viscous model sometimes i cath the oscillation of the lift coefficient, but with the unsteady k-eps i don't reach the same results...

i don't understand why this happens, because in general the flow should be unsteady....
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