S-A y+ problem

September 3, 2001, 09:55

Dear all

I know that if I am using a k-epsilon model with near wall treatment as two-layer zonal then my y+ must be below 4 or 5. What is the y+ value that lets the S-A model work probably, I have been told that it should be between 50 and 60, is this true?

Cheers

Andy

September 7, 2001, 11:47

Silly question maybe, but what is the S-A model?

Herve

September 9, 2001, 10:35

It is the Spalart-Allmaras turbulence model that can be used in Fluent, and can be found in the define menu. I would have thought that if you where using fluent you should have spotted this.

Andy

September 3, 2001, 09:55	S-A y+ problem	#1
Andrew Parker Guest Posts: n/a	Dear all I know that if I am using a k-epsilon model with near wall treatment as two-layer zonal then my y+ must be below 4 or 5. What is the y+ value that lets the S-A model work probably, I have been told that it should be between 50 and 60, is this true? Cheers Andy

September 7, 2001, 11:47	Re: S-A y+ problem	#2
Herve Guest Posts: n/a	Silly question maybe, but what is the S-A model? Herve

September 9, 2001, 10:35	Re: S-A y+ problem	#3
Andrew Parker Guest Posts: n/a	It is the Spalart-Allmaras turbulence model that can be used in Fluent, and can be found in the define menu. I would have thought that if you where using fluent you should have spotted this. Andy

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