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Air entrapment issue for CFD

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Old   May 4, 2016, 09:47
Default Air entrapment issue for CFD
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What is the proper way to simulate a flow through a pipe with air ratio (5%) in oil using CFD?
I tried to use equivalent density, viscosity and bulk modulus for the mixed air/oil in CFD material setup.
As soon as I changed the fluid bulk modulus for simulating air entrapment in oil, Autodesk Simulation CFD crashed.
Is it because of violation of "incompressible" requirement?
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