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January 26, 2009, 05:09 |
Wall function
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#1 |
Guest
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Hi guys!
I have a question related to wall functions...i was reading the FLUENT guide and i found u can apply wall functions to solve the boundary layer when ur grid is coarse and cannot catch all of it... in my case i have to work with a size cell of y+=100!!! so, which way do u suggest me to catch better the boundary layer?? thanks a lot! please i need help so any advice will be welcome! cheers Lottar |
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January 26, 2009, 10:37 |
Re: Wall function
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#2 |
Guest
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If your Y+ is around 100, then you should be using the standard wall function or the non equilibrium wall function, both with the k-e model. I'd recommend the realizable k-e model.
hope that helps. |
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January 26, 2009, 17:13 |
Re: Wall function
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#3 |
Guest
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Hi zongtwi!
thanks for answering so quickly, yes i was thinking the same, to apply standard wall function, but i wasnt sure of being enough to catch the BL working with such a high y+... what do u think?? cheers! |
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January 27, 2009, 06:36 |
Re: Wall function
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#4 |
Guest
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That's the whole point of using wall functions! Just follow the recommendations in the User's Guide, and you'll be fine.
Hope that helps. |
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