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Old   May 20, 2011, 07:49
Unhappy AMG solver divergence
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Fran
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Hi,
I'm modelling a more than 15 million elements absorption column. I think the setup and mesh are ok, but i'm getting AMG solver divergence.. The computer has only 4 gb RAM..the question is, could it be possible that this error message is connected with a lack of memory?
Thanks
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Old   May 20, 2011, 10:11
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k_k
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Kailash
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hi,

1. Are u running it on a seggregated solver? try shifting to coupled solver, or the other way round.

2. Start the run with very small under relaxation factors, (say 0.1)

Try this, hope it works.

Cheers
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Old   May 20, 2011, 10:31
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Fran
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Quote:
Originally Posted by k_k View Post
hi,

1. Are u running it on a seggregated solver? try shifting to coupled solver, or the other way round.

2. Start the run with very small under relaxation factors, (say 0.1)

Try this, hope it works.

Cheers
Hi K_K,
I've run it on the coupled solver and I've set the under-relaxation factors low but not as low as you are suggesting me..So I'll try it.
I hope it works..Thanks
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