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Help! How to calculate the diffusion flux of a UDS

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Old   June 18, 2008, 03:50
Default Help! How to calculate the diffusion flux of a UDS
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I have difined two UDSs in fluent. One UDS needs the diffusion flux of another UDS on the faces. In Fluent HELP, is is said that the convection flux can be calculated by the face's velocity. But, what about the diffusion flux? Have anyone the answers?

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