oyvinl |
February 23, 2011 17:31 |
Artifitial walls at outlet
I`m simulating a centrifugal compressor and have a problem with the outlet boundary. The Outlet BC is set to "Outlet" with a mass flow. The problem is that when simulating, walls (about 0,5 % of area) are constructed to prevent flow into the domain. I know that 0,5% may not affect the solution, but still... I read that the solution is to place the outlet far away from the blade (50-100%) of the chord length.. I have placed the outlet at various distance, and are now at about 300% of chord length, but the problem remains.:mad:
Can it be a physical problem, or is this just a problem with CFX??
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