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Old   March 27, 2003, 09:01
Default Boundary Layer Thickness
  #1
cfd-freak
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Hi,

How can we calculated the boundary layer thickness using the cfd-data available.

Thanks
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Old   March 27, 2003, 09:15
Default Re: Boundary Layer Thickness
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Manosh
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you can have a look a standard fluid dynamics book. There is a formula of boundary layer thickness, using this one you can easily find it.

If you have the following book.

Boundary Layer Theory by H. Schlichting & K. Gersten.

Look at the pages 31, 196, 513 as well.

Manosh
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Old   March 27, 2003, 12:35
Default Re: Boundary Layer Thickness
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BeachComber
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Yes, but unless you have a well defined "freestream", your boundary layer thickness is subjective to what you choose as a cutoff for this value.
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Old   March 27, 2003, 13:18
Default Re: Boundary Layer Thickness
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jay jay okacha
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Below the cut off value U/Uinfinitiy = 0.99 gives you the boundary layer predicted by CFD computations, then at any location you can measure the thickness.
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