Mesh refinement cause some instability -- CFD Online Discussion Forums

July 10, 2023, 14:36

Mesh refinement cause some instability

farzadmech

Senior Member

Farzad Faraji

Join Date: Nov 2019

Posts: 206

Rep Power: 9

Hello all
I am doing the same simulation with and without mesh refinement(both mesh are created using snappyHexMesh) which I have attached in the attachment section. My question is that why mesh refinement show some instability in velocity?

Thanks,
Farzad

Attached Images

	RefinedMeshwithinstability.jpeg (126.3 KB, 20 views)
	NormalMeshwithNoinstability.jpeg (177.0 KB, 17 views)

Tags

dpmfoam, instability, mesh, snappyhexmesh

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