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-   -   Solution scheme: 1st, 2nd order, etc in momentum eqs (http://www.cfd-online.com/Forums/main/101609-solution-scheme-1st-2nd-order-etc-momentum-eqs.html)

nottern May 8, 2012 22:17

Solution scheme: 1st, 2nd order, etc in momentum eqs
 
Hi, I have a question.

When I choose a solution scheme for the momentum equations, which variables are going to be interpolated in that way?. Just the velocities? The pressure too? Or the pressure follows the "pressure scheme"? (in fluent)

And, when I have big fluctuations in velocity, I'm aware that the 2nd order aproach will give me a more realistic solution. But, can I get a good solution with a 1st order scheme just refining the mesh?

Thanks in advance

madhukar_m_rao May 11, 2012 00:30

2nd order spatial discretization is recommended.


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