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Best combination for transient incompressible navier stokes eqn???
Posted Aug 15, 2010, 9:02 p.m. EDT 0 Replies
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But I changed the boudnary condition as the following;
inlet: from velocity curve to pressure curve
outlet: tranction free to flow rate
The previous boundary case was successful to converge and it looks like reasonable results. But the other boundary combination cause convergence error after several time steps.
In both cases I calculated stationary step and based on this result the transient silumation was run.
Is the combination of pressure for inlet and flow rate for outlet a worst case in comsol?
I have to apply this boundaries to simulate FSI model.
I really appreciate any comments for this problem. Thanks in advance.
Hello Sungho Kim
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