Multiphase analysis
I am trying to learn the CFX capability for performing multiphase (air + water) analysis. When I get results, I get two heat transfer coefficients viz "Air. Heat Transfer Coefficient" and "Water. Heat Transfer Coefficient". How do I interpret the results to find the effective heat transfer coefficient?
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This is all discussed in the documentation, see under solver modelling/multiphase/boundary conditions/wall boundaries
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Dear Mr. Horrocks,
Thanks a lot. I could get the documentation. When I run some of the cases (flow inside the pipe) I get the following message. Can you indicate the type and extent of inaccuracy in analysis due to the same? ****** Notice ****** A wall has been placed at portion(s) of an OUTLET boundary condition (at 1.4% of the faces, 2.4% of the area) to prevent fluid from flowing into the domain. The boundary condition name is: Outlet. The fluid name is: Air at 25 C. If this situation persists, consider switching to an Opening type boundary condition instead. With best regards, Dev325 |
This question has been asked thousands of times. Do a search on the forum for comments on this issue.
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Change your Outlet BC into an Open BC and use hydrostatic pressure through CEL.
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I would go through the posts more carefully and thoroughly.
Thanks. |
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