Approximation asymptotique uniformément valable d'un écoulement perturbé sur une plaque plane avec incidence

Abstract: In the context of the laminar steady two-dimensional flow of an incompressible Newtonian fluid, we propose, with the matched asymptotic expansions method, a uniformly valid approximation in the whole domain for a disturbed flow over a flat plate with incidence. Following Libby and Fox''s ideas, two-dimensional disturbances generated in the boundary layer, without disturbed pressure gradient, have been studied for a basic flow without incidence. The established theoretical perturbation is then validated from the numerical simulation of the Navier–Stokes equations linearized in the vicinity of the basic flow. To cite this article: S. Saintlos Brillac, K. Debbagh, C. R. Mecanique 336 (2008). [Copyright &y& Elsevier]