look up the courant number

jopawipr · March 15, 2010, 07:22

Hi everybody!

I'm pretty new in CFD and I've a problem with reversed flow at my pressure outlet. So i looked it up in the online Help.
I just found the conection between reversed flow and Courant Number and Under-relaxation-factor. Where can i look it up? Or does CCM+ compute it for each simulation and each time step for it self?

Thank you very much!

Vinicius · March 16, 2010, 15:36

Hi,

In STAR-CCM+ simulation tree, open the Solver´s node. There you can find the places where you can change the under-ralaxation factors and the size o time-step. The courant number just can be modified if the coupled flow solver was selected.

In star-ccm+ help you can find many information about that.

March 15, 2010, 07:22	look up the courant number	#1
jopawipr New Member Johannes Join Date: May 2009 Posts: 16 Rep Power: 16	Hi everybody! I'm pretty new in CFD and I've a problem with reversed flow at my pressure outlet. So i looked it up in the online Help. I just found the conection between reversed flow and Courant Number and Under-relaxation-factor. Where can i look it up? Or does CCM+ compute it for each simulation and each time step for it self? Thank you very much!

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March 16, 2010, 15:36		#2
Vinicius Member Vinicius Girardi Join Date: Mar 2009 Location: Sao Paulo, Brazil Posts: 80 Rep Power: 17	Hi, In STAR-CCM+ simulation tree, open the Solver´s node. There you can find the places where you can change the under-ralaxation factors and the size o time-step. The courant number just can be modified if the coupled flow solver was selected. In star-ccm+ help you can find many information about that.