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-   -   can not converge if use variable density (http://www.cfd-online.com/Forums/fluent/46606-can-not-converge-if-use-variable-density.html)

alfred November 13, 2007 03:02

can not converge if use variable density
 
Hi, there, in my model, if I use constant water density, my computation converges after around 100 iteration; while if I use piecewise linear density of water (density changes from 1000 to 972, for 278 k to 353k, no matter how many intermediate points used in between), it does not converge even after 10k iteration. The energy error still at order of 1e-4? what can I do to make it converge? thanks!


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