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-   -   Periodic Interface (Ideal Gas) Massflow Control (http://www.cfd-online.com/Forums/cfx/90927-periodic-interface-ideal-gas-massflow-control.html)

Zigainer July 25, 2011 11:43

Periodic Interface (Ideal Gas) Massflow Control
 
Hi,

I want to to a translational periodicity and use the material ideal gas.
My results using Air at 25 are converging and I can set a specific mass flow at the interface.
But I am not allowed to set a mass flow rate at an interface using air ideal gas. If I set it to none, my mass flow is asymptotically going to zero .... almost zero after 50 iteration ...... do I have to set a momentum source? Or whats the solution?

Thanks in advance!


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