non positive volumes exist

July 6, 2006, 10:26

Hi,

I am running a 3D transient simulation in fluent 6.1.22. When I first read the mesh in to fluent, I did not have any problems: Grid check was successful. After some iterations however the warning "non-positive volumes exist" appears and after few additional iterations

"Error: divergence detected in AMG solver: k Error Object: ()"

and the solution fails.

I went back to Gambit to check my mesh and, I can't figure out what is wrong. Can anyone help me?

Thanx in advance. Moke

July 7, 2006, 09:20

Hi Moke, i just experience the same problem. After several thousends of iterations i got an error message and the next time i wanted to continue with the solution i got exactly the same error... just start from an earlier solution again. maybe that helps. Claud

July 6, 2006, 10:26	non positive volumes exist	#1
Moke Guest Posts: n/a	Hi, I am running a 3D transient simulation in fluent 6.1.22. When I first read the mesh in to fluent, I did not have any problems: Grid check was successful. After some iterations however the warning "non-positive volumes exist" appears and after few additional iterations "Error: divergence detected in AMG solver: k Error Object: ()" and the solution fails. I went back to Gambit to check my mesh and, I can't figure out what is wrong. Can anyone help me? Thanx in advance. Moke

July 7, 2006, 09:20	Re: non positive volumes exist	#2
Claud Guest Posts: n/a	Hi Moke, i just experience the same problem. After several thousends of iterations i got an error message and the next time i wanted to continue with the solution i got exactly the same error... just start from an earlier solution again. maybe that helps. Claud

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