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linearization problem of source term

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Old   March 1, 2006, 19:53
Default linearization problem of source term
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Hi, if source term is a non-linear function, how to deal with dS in writing UDF code?or, divergence problem will be me pls.
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Old   March 2, 2006, 08:23
Default Re: linearization problem of source term
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the source term must be linearised with respect to the dependant variable. For example an x-momentum source term is linearised with respect to the x-velocity. I reccomend taking a look at the CFD wiki ( or "Numerical heat transfer and fluid flow" by Patankar (1980)
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