rigid body convergence issue

hamed.majeed · September 30, 2012, 14:34

Hi,
guys is there no expert on this.
At least anyone tell me how to reduce dispersion in the residuals. What are its reasons. I need basic CFD knowledge on this.

ghorrocks · October 1, 2012, 08:37

I have already told you an experiment which will tell you whether your problem is convergence problems at low Re when the body first starts moving.

Have you put your body in a strong cross flow (to make sure it is high Re right from the start) and checked whether that converges well?

If you are unhappy with the help you are getting on the forum then contact CFX support.

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September 30, 2012, 14:34		#21
hamed.majeed Senior Member Hamed Abdul Majeed Join Date: May 2012 Location: New Orleans, LA, US Posts: 147 Rep Power: 14	Hi, guys is there no expert on this. At least anyone tell me how to reduce dispersion in the residuals. What are its reasons. I need basic CFD knowledge on this.

October 1, 2012, 08:37		#22
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,870 Rep Power: 144	I have already told you an experiment which will tell you whether your problem is convergence problems at low Re when the body first starts moving. Have you put your body in a strong cross flow (to make sure it is high Re right from the start) and checked whether that converges well? If you are unhappy with the help you are getting on the forum then contact CFX support.