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-   -   air-fuel mixing in backward facing step (http://www.cfd-online.com/Forums/main/86327-air-fuel-mixing-backward-facing-step.html)

abdullahkarimi March 19, 2011 19:39

air-fuel mixing in backward facing step
 
Hi guys,
I am trying to simulate air-fuel mixing in backward facing step....i m injecting hydrogen from bottom wall downstream the step. the injection condition is sonic and m using stagnation inlet in starccm+. The air inlet mach no. is 2. The problem diverges after some iterations. there is reverse flow at outlet sometimes.
plz comment on the probable cause of diverging.

thanks

Abdullah


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