CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   Main CFD Forum (http://www.cfd-online.com/Forums/main/)
-   -   explicit formula (http://www.cfd-online.com/Forums/main/15464-explicit-formula.html)

cherry July 23, 2008 14:15

explicit formula
 
What is first derivative artificial viscosity in the source term via the explicit formula. Is this a correct formula

[ W_n+1 - W_n-1 ]/delta x


Vinayender July 28, 2008 10:05

Re: explicit formula
 
Hi,

Please expand W_n+1 and W_n-1 using Taylor's series and see your self, observe the trucation terms. This should be a farily simple and very useful excersice.

Thanks, Vinayender.


All times are GMT -4. The time now is 23:36.