Wall function
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 |
Re: Wall function
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. |
Re: Wall function
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! |
Re: Wall function
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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