Instability at pRefPoint -- CFD Online Discussion Forums

June 28, 2018, 14:50

Instability at pRefPoint

MaryBau

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Join Date: Jul 2010

Posts: 52

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Hi,

I am doing a simulation of the atmospheric boundary layer using a solver based on buoyantPimpleFoam.

It rans fine when the case has a simple mesh (i.e. flat terrain). For more complicated meshes (i.e. complex terrain) I get "instabilities" at the location of the pRefPoint, no matter where I set up this point. See the picture.

Does anybody know why?

Thanks,

Mary

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pRefPoint.png (21.4 KB, 8 views)

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