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Kevin August 1, 2005 02:26

Transient case cannot convergence?
 
An transient problem cannot convergence.

What should I do next?

How to modify the model?

CHELSA August 1, 2005 14:52

Re: Transient case cannot convergence?
 
Hey Kevin,

I was under the impression that transient keeps changing with time : correct me if I am wrong. Is there any special case you are running? Can you explain the problem.

Regards

Kevin August 1, 2005 21:41

Re: Transient case cannot convergence?
 
Hello,CHELSA ,

There are two large scale box passing each other in this case. Box is 1m*0.4m*0.3m, is filleted .The velocity of the two box is respectively 50m/s and -50m/s. It is versy simple ,but convergence is difficulty to arrive.

I changed the delta time ,but it still divergenced.I 'am confused for the case,what should i do next?

som August 1, 2005 22:29

Re: Transient case cannot convergence?
 
Is it cell activation and deactivation?

CHELSA August 2, 2005 16:48

Re: Transient case cannot convergence?
 
Hey Kevin,

Looks like it is a case of large tolerences. How much did you give? Try something like 0.001 or closer and also are your momentum equations converging?

Kevin August 3, 2005 07:35

Re: Transient case cannot convergence?
 
To Som yes,just as you said.

To Chelsa

Thanks ,I will try again!


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