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July 1, 2012, 11:06 |
standard and enhanced ?
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#1 |
New Member
Moataz
Join Date: Jul 2012
Posts: 5
Rep Power: 13 |
Hello all,
I want to know what is the difference bet. standard wall functions and enhanced wall treatment. Also for standard wall functions y+ if the minimum is less than 30 is that wrong? and how could i adjust its value , i use the adaption but the min always less than 30 ? thanks in advance. |
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July 1, 2012, 11:30 |
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#2 |
Super Moderator
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http://www.cfd-online.com/Forums/cfx/99023-wall-function.htm
Enhanced wall treatment in Fluent is equivalent to automatic wall treatment in CFX (roughly speaking) |
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July 1, 2012, 11:45 |
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#3 |
New Member
Moataz
Join Date: Jul 2012
Posts: 5
Rep Power: 13 |
thanks Far,
i understand now the difference, but i still don`t know how to adjust the value of y+ |
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July 1, 2012, 11:59 |
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#4 |
Super Moderator
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use the yplus calculator available online and is based on flat plate formulae. It is a good starting point, later on you can fine tune yplus once you have simulation results (you should get idea within 25-40 iterations). http://geolab.larc.nasa.gov/APPS/YPlus/
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July 1, 2012, 12:10 |
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#5 |
New Member
Moataz
Join Date: Jul 2012
Posts: 5
Rep Power: 13 |
thanks Far , i will try.
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July 1, 2012, 12:16 |
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#6 |
New Member
Moataz
Join Date: Jul 2012
Posts: 5
Rep Power: 13 |
iam making a simulation of VAWT, will the calculator be useful ???
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