KNOWN ISSUE: Problem with energy equation in multiphase, multi-component flow (Class 3 Error)
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SYMPTOM: The predicted temperature field in a multiphase, multi-component flow is incorrect. The errors may be quite large and noticeable, but they are equally likely to be small and not apparent to the user. PROBLEM: This is due to a problem with the drift flux term, modelling species diffusion, in the energy equation having incorrect dependence on the volume fractions of the fluids. WORKAROUND: No workaround is currently available. FIXED IN: ANSYS CFX Release 12.1. A custom executable for ANSYS CFX Release 12.0 is available on request. |
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