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what are AMG and FAS?

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Old   April 5, 2001, 02:07
Default what are AMG and FAS?
  #1
Harry Qiu
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Dear Mr. or Mrs.:

I do read parts of FLUENT USER GUIDE which is relevant to AMG and FAS(coupled solver) again and again. But I alway can't understand these two numerical technology completely, because my mother language is not English. Could you explain AMG and FAS in brief, especilly how to use them?

Thank you very much. Sincerely, Harry.
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Old   April 5, 2001, 02:31
Default Re: what are AMG and FAS?
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John C. Chien
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(1). Don't worry about it. (2). If your problem is converging, then these methods "could" speed up the convergence through multi-grid approach.(if you are very lucky, and in most cases it will have negative impact on convergence.) (3). For simple diffusion problems, it is useful to cut down the computing time. Otherwise, don't touch it.
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?-->FAS and AMG for coupled solver Harry Qiu FLUENT 0 April 3, 2001 21:08


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