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Trias June 14, 2004 17:21

Urgent Help Needed!
If the fluid flows with a subsonic speed at the first contraction, then with a supersonic flow at the second contraction, what kind of solver setting is better for this kind of case?

Thanks a lot!

ROOZBEH June 15, 2004 08:18

Re: Urgent Help Needed!
Hi; Generally coupled solver is proposed to solve a compressible flows. I use this sover to simulate the flow in a converging-diverging nozzel. To capture shock with a good sharpness, use a second order upwind scheme to discretize convective terms.


Trias June 15, 2004 17:32

Re: Urgent Help Needed!
Thank you very much for your message! Normally, you use couple/implicit or couple/explicit? Thanks again!

ROOZBEH June 19, 2004 07:04

Re: Urgent Help Needed!
Hi; I use couple/explicit to turn on multigrid tecnique to increase rate of convergence.


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