An transient problem cannot convergence.

What should I do next?

How to modify the model?

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

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?

Is it cell activation and deactivation?

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?

To Som yes,just as you said.

To Chelsa

Thanks ,I will try again!