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May 16, 2012, 03:28 |
Thickness boundary layer
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#1 |
Member
Francesco
Join Date: Jan 2012
Posts: 31
Rep Power: 14 |
Dear all,
how can I calculate the thickness of the boundary layer along a blade of an axial fan? Thanks guys |
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May 17, 2012, 03:09 |
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#2 |
Super Moderator
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You should run your ur calculation and then measure the thickness of boundary layer. However, for the purpose of fine tuning mesh parameters, use the flat plate boundary layer formulae
http://en.wikipedia.org/wiki/Boundary-layer_thickness http://www.ae.metu.edu.tr/~ae244/doc...07/node12.html |
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May 17, 2012, 11:29 |
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#3 |
Member
Francesco
Join Date: Jan 2012
Posts: 31
Rep Power: 14 |
Thank you man! Think I'm gonna do this:
1. I use the Blasius formula for flat plane in order to get an idea of the thickness 2. I run a first simulation containing something like 5 elements along this thickness 3. After that I could have the real measurement of the thinkness, so that I could run one more simulation more refined. |
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Tags |
boundary layer, fluid dynamics |
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