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January 27, 2010, 15:04 |
Near Wall Question
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#1 |
New Member
s
Join Date: Jan 2010
Posts: 1
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hi all
why does the region very close to walls need special treatment in modelling tubulent flows? Cheers |
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January 27, 2010, 16:43 |
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#2 |
Senior Member
Ahmed
Join Date: Mar 2009
Location: NY
Posts: 251
Rep Power: 18 |
not just in turbulent flows, in all flow regimes the boundary layer has to be resolved as accurate as possible, it just happens that all gradients are very severe and accurate resolution is very very expensive albeit few academic cases.
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January 27, 2010, 19:34 |
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#3 |
Senior Member
Join Date: Nov 2009
Posts: 411
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I suggest you to read an introductory chapter about Boundary Layer theory, Anderson's book, Fundamentals of Aerodynamics, has a good introduction.
For a classical work in the field see "Boundary Layer Theory" by H. Schlichting. Do |
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February 2, 2010, 08:27 |
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#4 |
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Simon Hubbard
Join Date: Mar 2009
Posts: 10
Rep Power: 17 |
A simple intriduction to these things can be found here
http://www.fluent.com/software/unive.../turbulent.pdf Enjoy! |
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February 4, 2010, 17:23 |
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#5 |
Senior Member
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it's one of the most important effects in fluid movement.
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