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-   -   centrifugal compressor stimulation (http://www.cfd-online.com/Forums/cfx/124259-centrifugal-compressor-stimulation.html)

Aysiyi September 30, 2013 20:54

centrifugal compressor stimulation
 
Hello,

I'm new to CFX software. I am trying to stimulate a centrifugal compressor. the model include a impeller passage, a diffuser passage,a whole volute. The inlet boundry is total pressure, total temperature, direction of velocity. The outlet boundry is mass flow. it is a steady stimulation. But during solving, the mass flow of inlet isn't equal to outlet,and when I change the mass flow of outlet, the mass flow of inlet isn't changed. I don't know why,and who can help me?

ghorrocks October 1, 2013 20:34

It sounds like your simulation is not converged. It can take a few iterations for the changes at the inlet to propagate to the outlet, and a few more iterations to establish the new equilibrium.

joejaking March 8, 2014 10:50

Aysiyi, had you solved the problem? recently i met this question too, can you help me?

Lance March 10, 2014 03:12

I didnt know you could stimulate a compressor? It sounds nasty ;)


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