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[ANSYS Meshing] Inflation layer thickness based on y+

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Old   July 29, 2013, 13:21
Default Inflation layer thickness based on y+
Bart A.
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Understanding that an inflation layer on walls is more or less mandatory for a turbulent flow I have begun researching that.
I don't understand completely what should fall in the y+ region. Is it the first prism cell or the full prism layer? To be more concrete, if my y+ value is 3.5e-4 m, should I set that value as the first layer thickness or total thickness in the inflation setup of Ansys meshing?

I found two contradicting statements on this topic. The manual states that all wall adjacent cells should be located within the log-law layer, but another site states that the y+ value is only related to the first prism layer.

Could somebody please explain this?
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Old   July 29, 2013, 15:17
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Ghazlani M. Ali
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The first layer thickness
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New to ICEM CFD, try this document -->
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inflation layer, mesh, prism layer

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