contenu dans Titre de série : | Journal of Scientific Computing, Vol. 7, No.3 | Titre : | An algebraic-Q4 turbulent eddy viscosity model: Boundary layer flow over a flat plate and flow in a pipe | Type de document : | articles et extraits | Auteurs : | Alexander Yakhot, Auteur ; Omer Kedar, Auteur ; S. A. Orszag, Auteur | Année de publication : | 1992 | Importance : | p. 229-239 | Langues : | Anglais (eng) | Résumé : | An algebraic turbulent eddy viscosity model is proposed based on a length scale model coupled with the turbulent viscosity expression of the renormalization group theory of turbulence. The eddy viscosity is presented as a solution of a quartic equation. The new length scale model is based on boundary layer characteristics (displacement thickness, shape factor). The model is applied to transitional boundary layer flow over a flat plate and to flow in a smooth pipe. Predictions for the laminar-turbulent transition, and integral characteristics, such as the total skin friction coefficient, mean velocity profile across the boundary layer, and the friction coefficient in a pipe, are found to be in good agreement with experimental data. |
contenu dans Journal of Scientific Computing, Vol. 7, No.3. An algebraic-Q4 turbulent eddy viscosity model: Boundary layer flow over a flat plate and flow in a pipe [articles et extraits] / Alexander Yakhot, Auteur ; Omer Kedar, Auteur ; S. A. Orszag, Auteur . - 1992 . - p. 229-239. Langues : Anglais ( eng) Résumé : | An algebraic turbulent eddy viscosity model is proposed based on a length scale model coupled with the turbulent viscosity expression of the renormalization group theory of turbulence. The eddy viscosity is presented as a solution of a quartic equation. The new length scale model is based on boundary layer characteristics (displacement thickness, shape factor). The model is applied to transitional boundary layer flow over a flat plate and to flow in a smooth pipe. Predictions for the laminar-turbulent transition, and integral characteristics, such as the total skin friction coefficient, mean velocity profile across the boundary layer, and the friction coefficient in a pipe, are found to be in good agreement with experimental data. |
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