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what is the correct y+ for SST k-omega with default kqQwallfunction/omegawallfunction

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Old   January 1, 2016, 08:48
Default what is the correct y+ for SST k-omega with default kqQwallfunction/omegawallfunction
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Yage
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Dear Foamers,

I am a little bit confused about how to choose the correct yplus for SST k-omega,

Some people insist on y+<=1, but some people(references) suggest(use) 300>y+>30.


My current model is a submerged body closed to free surface under constant water current speed (Re=280000). Type kqRwallfunction/omegawallfunction are used for model k and omega boundary

and the y+ value at the moment without added layers are:
Code:
y+ : min: 1.95390971 max: 233.585105 average: 38.0527751
Please could someone suggest me whether I need to add layers for my current model?
Regards,
Yage
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Old   January 1, 2016, 15:40
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Bruno Santos
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Quick answer: Google:
Code:
site:www.dicat.unige.it/guerrero/ omega
I believe it's the presentation "A crash introduction to turbulence modelling in OpenFOAMŪ" has more details on what you're looking for.

I didn't put up a link, because the presentation is updated once in a while and then the link would be broken in a few months from now
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Old   January 1, 2016, 16:18
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Quote:
Originally Posted by wyldckat View Post
Quick answer: Google:
Code:
site:www.dicat.unige.it/guerrero/ omega
I believe it's the presentation "A crash introduction to turbulence modelling in OpenFOAMŪ" has more details on what you're looking for.

I didn't put up a link, because the presentation is updated once in a while and then the link would be broken in a few months from now
Dear Bruno,

The reference is quite useful for me

Many thanks and happy new year!

Regards
Yage
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