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Forum: CFX

July 11, 2014, 07:57

Replies: 27

Shock waves

Views: 6,576

Posted By singer1812

I would guess that your Boundary conditions are...

I would guess that your Boundary conditions are too close to your step. For sure, a shock wave is hitting that step, reflecting back and hitting your opening.

Move the BCs further away.
...

Forum: CFX

July 10, 2014, 13:50

Replies: 27

Shock waves

Views: 6,576

Posted By singer1812

Over converge? Never heard of such a thing. ...

Over converge? Never heard of such a thing.

Steady state is working.

Transient should work just fine. I have done many of these problems.

Typically I model a large caliber gun blast and...

Forum: CFX

July 10, 2014, 13:46

Replies: 27

Shock waves

Views: 6,576

Posted By singer1812

Ok, so what is the problem?

Ok, so what is the problem?

Forum: CFX

July 10, 2014, 13:41

Replies: 27

Shock waves

Views: 6,576

Posted By singer1812

You are running a steady state analysis. Try...

You are running a steady state analysis. Try setting your initial conditions to U=500m/s.

Forum: CFX

July 10, 2014, 12:35

Replies: 27

Shock waves

Views: 6,576

Posted By singer1812

Export your CCL and your output as text files. ...

Export your CCL and your output as text files. Please post.

Forum: CFX

July 10, 2014, 11:54

Replies: 27

Shock waves

Views: 6,576

Posted By singer1812

You need to provide more informantion on your...

You need to provide more informantion on your actual model that you are running. Post your output and CCL.

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