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-   -   Convergence for a transient problem (http://www.cfd-online.com/Forums/fluent/104869-convergence-transient-problem.html)

jgrisham July 17, 2012 11:47

Convergence for a transient problem
 
Hello everyone.
I am trying to solve a problem where a shock wave passes trough a tube.
I put as an output boundary a sinusoidal condition for the pressure (udf). My problem is whenever the wave passes through i have a convergence problem ( abnormal discontinuity in the pressure). And so my residuals are never converging.
I thought about refining the mesh with a dynamic mesh but don't very know how to do it so it can follow the wave.
Do you have any other solutions/suggestions ?

Thank you in advance


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