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-   -   Higher order polynomial problem... (http://www.cfd-online.com/Forums/fluent/47389-higher-order-polynomial-problem.html)

Markas February 20, 2008 17:44

Higher order polynomial problem...
 
Hello friends, yesterday i faced one problem and i m still searching answer for that, but couldnot. In my simulation i was having material properties at different temperatures. So i thought to define viscosity as a function of temp with help of Polynomial equation which is avalibale in fluent. i used higer order of polynomial(6 order). i found that solution was showing diverging behaviour. After that i took polynomial of lesser order(second order) in that case solutions was moving towards convergence. so why higher order is giving diverging solution?


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