Mesh Refinement around sharp corners of vehicle -- CFD Online Discussion Forums

November 25, 2014, 11:37

Mesh Refinement around sharp corners of vehicle

jpesich

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Justin

Join Date: Aug 2014

Posts: 16

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Hello everyone,

I am creating a mesh around a car using trimmer and 20 prism layers over 25mm. The first layer is at 1E-5 meters. This satisfies y+~1 for my simulations.

The problem is I do not get very good convergence from my residuals. The lowest I have gotten is just below 1E-3.

Attached is some pictures from the front/rear bumpers and windshield wiper areas where there are degenerate cells due to the sharp curves. Does anyone know how to refine these cell areas? Thanks!!!

Attached Images

	front bumper mesh.PNG (29.3 KB, 31 views)
	rear bumper mesh.PNG (36.7 KB, 33 views)
	wiper mesh.jpg (51.0 KB, 24 views)

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