Multigrid error on 2D Eurelian flow -- CFD Online Discussion Forums

September 22, 2005, 21:04	Multigrid error on 2D Eurelian flow	#1
galeazzo Guest Posts: n/a	Hi, I am studing a two phase flow (air and water) inside a reactor, and I am modeling a 2D slice of these reactor with FLUENT 6.2.16 under Windows 2000. Am facing problems with the stability of the results, with divergence sometimes. I think the problem is the multigrid settings. If I set all the AMG methods to "selective", the results for the flow get better, but the energy not. I get the message "Restrict_Defect: Using stored RESIDUAL" when I set the Verbosity of the AMG solver to 2. Have anyone faced this kind of problem? Thanks, galeazzo

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