Boundary Layer Thickness
 

Hi,

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

Thanks

Re: Boundary Layer Thickness
 

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

Re: Boundary Layer Thickness
 

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.

Re: Boundary Layer Thickness
 

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.