Problems with y+ and residuals -- CFD Online Discussion Forums

June 9, 2022, 12:53

Problems with y+ and residuals

KimmyMinny

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Katarina

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Hi!

I am a student and I am writing a graduate thesis on the topic: resistance of the KCS ship. I'm new to CFD and i don't have much experience.
When i run the simulation i notice huge y+ numbers on the upper part of the hull while at the lower part they seem good, except at the end of the rudder.
Is it the fault of the bad mesh or is it something else?

I'm posting a picture so you can see my problems.

Thank you very much!

Attached Images

	residuals.jpg (86.3 KB, 17 views)
	y+.jpg (31.4 KB, 15 views)

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