accuracy vs stabiliy using limited 0.5 snGrad schemes -- CFD Online Discussion Forums

October 19, 2017, 14:12	accuracy vs stabiliy using limited 0.5 snGrad schemes	#1
kiyo.matsui New Member kiyo matsui Join Date: Apr 2015 Posts: 4 Rep Power: 11	Hi all, I guess (hope) incompressible RANS bluff body flows are quite common, I have modelled these types of flows quite often with OpenFOAM. As they are more convection dominant compared to other flows I have seen little impact when limiting the non-orthogonal correction in the snGrad schemes, (limited 0.5). Theoretically this should reduce the accuracy but when running tests I tend not to see much of a difference. What are other peoples experience when using limited non-orthogonal correction? Ramzy1990 likes this.

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