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-   -   linearization problem of source term (http://www.cfd-online.com/Forums/fluent/39910-linearization-problem-source-term.html)

wanghong March 1, 2006 19:53

linearization problem of source term
 
Hi, if source term is a non-linear function, how to deal with dS in writing UDF code?or, divergence problem will be met.help me pls.

Aidan March 2, 2006 08:23

Re: linearization problem of source term
 
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 (http://www.cfd-online.com/Wiki/Sourc..._linearization) or "Numerical heat transfer and fluid flow" by Patankar (1980)


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