Ggi linear solvers -- CFD Online Discussion Forums

June 29, 2011, 08:25

Ggi linear solvers

flowris

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Join Date: Apr 2010

Posts: 151

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Dear forum,

I am using ggi in parallel and experiencing instabilities at the interception of the ggi and processor boundaries (see picture). In Jasak's presentation (http://www.openfoamworkshop.org/2009...sak_slides.pdf), he warns us to take care is in the choice of linear equation solvers.

Can anybody give me some explanation or tips on which solvers to use and which to avoid?

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