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Transient boundary?

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Old   August 4, 2005, 01:48
Default Transient boundary?
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I am using the transient boundary condition(compressible, transient) to consider the shockwave passing the computational domain.

But I observed the passage of shockwave but after passing the computational domain, the weak pressure region followed. Then vector field becomes unphyscial behavior. As I see, the normal component of vector to the transient boundary set to zero, there are only horizontal velocity. It seems like the wall !!!!

What is the problem in that case?
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