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-   -   Laminar or tubulent Boundary layer? (http://www.cfd-online.com/Forums/fluent/30814-laminar-tubulent-boundary-layer.html)

Rodrigo Madariaga January 17, 2003 08:44

Laminar or tubulent Boundary layer?
 
Can Fluent predict the laminar-turbulent transition over a surface? I am using the spallart Allmaras turbulence model for an airfoil and the drag is too high. I suppose its because of the turbulent boundary layer. I want a laminar BL but I`m not sure how to get it. The turbulence intensity is set for 1% and the hydraulic diameter is around 10mm.

Jin-Wook LEE January 23, 2003 21:41

Re: Laminar or tubulent Boundary layer?
 
As far as I know, Spallart Allmaras turbulence model can not predict laminar-turbulent transition. They say that K-omega with transitional flow option can do(I did not have experience wirh that model).

Sincerely, Jinwook


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