Slip walls or Zero shear stress
I am trying to understand if is it reasonable to use "slip walls" or "zero shear stress" to model smooth walls. I am working with turbulent air flows in ducts.
Please share your comments.
Are there materials that would qualify as "slip walls"?
For example, the pipe roughness of glass/drawn brass/copper pipe is 0.0015 mm. Is it wise to enforce "zero shear stress" on such wall?
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