CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   Main CFD Forum (http://www.cfd-online.com/Forums/main/)
-   -   Convergence Crieteria for pressure terms in N-S eq (http://www.cfd-online.com/Forums/main/5621-convergence-crieteria-pressure-terms-n-s-eq.html)

Navdeep January 10, 2003 05:07

Convergence Crieteria for pressure terms in N-S eq
 
Hello everybody

Happy New Year

i am solving N-S equations and i encountered problems in the convergence of thye pressure terms. what is the best way to converge easy andfast. i am solving both steady and unsteady state equations. Thanks Navdeep

Manish January 13, 2003 03:20

Re: Convergence Crieteria for pressure terms in N-
 
I solved the same by SIMPLE method, if you are using the same, then the solution will be.. For 2-D problem, then factor 'b' in pressure discratisation equation, which is generaly used for source term should be sufficiently small. for details u should see book by Patankar. For 3-D problem, there is no need for any convergance criteria, just apply four or five iterative TDMA loops over pressure equation(discratised), it will give results. I hope this can be help full. look for other people.. best of luck Happy Lohri


All times are GMT -4. The time now is 16:54.