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-   -   High Local mach number for sub sonic flow (http://www.cfd-online.com/Forums/cfx/23261-high-local-mach-number-sub-sonic-flow.html)

kali November 2, 2006 10:23

High Local mach number for sub sonic flow
 
I have a rotor stator model. This is a subsonic model using RNG KE. But I have observed that locally the flow shows high mach number(2.7) at the exit of a narrow rotor stator gap. Essentially the flow comes out as a jet. Although CFX warns to change to max contuinty loop 2, still the model continues to run and gets converged. I suspect the mesh locally. But looks pretty decent(ICEM quality 0.4 determinant and 18 deg angle). Can someone through some lights on the issue including the grid..

Thanks in advance, Kali


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