Numerical computation of three-dimensional turbulent boundary layers for the infinite swept wing (Q1094250)

In order to analyze a three-dimensional boundary layer, we have chosen the model problem of an infinite swept wing. Under the assumption of a translation invariance in one of the space directions, a choice of cartesian coordinates dramatically simplifies the equations. The turbulence modeling is based on the eddy viscosity assumption and uses the Prandtl's mixing length model. This model is improved by introducing the anisotropic eddy viscosity formulation of \textit{A. Nakkasyan, T. S. Prahlad} and \textit{I. L. Ryhming} [A 3-D turbulent boundary layer model based on local velocity profile skewing with parametric investigation, Rapport de recherche LMF, R-7-82, Ecole IMHEF T-86-6, Ecole Polytechnique Fédérale de Lausanne (1987)]. We recall the equation system for turbulent boundary layer under infinite swept wing conditions with a strong emphasis on the turbulence model. We describe a numerical scheme to discretize the problem. Finally, Section 4 is devoted to numerical tests and comparisons with the experimental results.