To use all functions of this page, please activate cookies in your browser.
With an accout for my.chemeurope.com you can always see everything at a glance – and you can configure your own website and individual newsletter.
- My watch list
- My saved searches
- My saved topics
- My newsletter
The Cebeci-Smith model is a 0-equation eddy viscosity model used in computational fluid dynamics analysis of turbulent boundary layer flows. The model gives eddy viscosity, μt, as a function of the local boundary layer velocity profile. The model is suitable for high-speed flows with thin attached boundary-layers, typically present in aerospace applications. Like the Baldwin-Lomax model, this model is not suitable for cases with large separated regions and significant curvature/rotation effects. Unlike the Baldwin-Lomax model, this model requires the determination of of a boundary layer edge.
Additional recommended knowledge
In a two-layer model, the boundary layer is considered to comprise two layers: inner (close to the surface) and outer. The eddy viscosity is calculated separately for each layer and combined using:
where ycrossover is the smallest distance from the surface where is equal to .
The inner-region eddy viscosity is given by:
with the von Karman constant κ usually being taken as 0.4, and with
The eddy viscosity in the outer region is given by:
where α = 0.0168, is the displacement thickness, given by
and FK is the Klebanoff intermittency function given by
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Cebeci-Smith_model". A list of authors is available in Wikipedia.|