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Mesh foot print in results

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Old   September 8, 2020, 09:34
Default Mesh foot print in results
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Hi foamers!
Hope you are doing well.

I am doing LES simulation (Smagornisky and WALE) for studying vortex shedding on the wake of cylinders. I am running some test cases, and I found something bizarre.

When I plot vorticity magnitude I see some mesh patterns in the graph too. I do not know why it appeared in my plot? is it because of low meshing quality or this might have other reasons like FV schemes?

Please see these figures as example :

https://ibb.co/QFr5bSs

https://ibb.co/P5TNywb

Thank you for you help
Best
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