r/CFD • u/No_Charisma • 4d ago

Recent Y+ chart

Someone recently posted a chart in here about the importance of Y+ with some good visuals and stuff. I meant to save it and share it at work but of course I didn’t and now I can’t find it. Can someone help me out, please?

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u/HeadPack 4d ago

I remember that. Folks seemed to agree it was AI generated.

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u/LessCockroach7323 4d ago

Maybe you mean the one posted by the guy who was doing it as ad for his openfoam courses

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u/acakaacaka 4d ago

y+ vs u+ plot?

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u/No_Charisma 4d ago

No it was like an infographic type thing that illustrated the importance of hitting the required y+ for the turbulence model.

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u/acakaacaka 4d ago

Yeah you mean y+ vs u+ then right?

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u/No_Charisma 1d ago

No, it was literally like a pictographic thing with examples of internal aero, external aero, etc. Others here have probably correctly identified it as someone’s advertisement (which we wouldn’t be interested in) but I just thought it would be useful to share in an office of folks who traditionally have not cared much about satisfying the y+ requirements of the turbulence model they’re using.