Antisymmetric Aspects of a Perturbed Channel Flow
Lecture Notes in Computational Science and EngineeringBAIL 2008 - Boundary and Interior Layers(2009)
Abstract
This paper aims at studying steady laminar flows of incompressible newtonian fluids in channels at high Reynolds numbers when
wall deformations can lead to separation. Thanks to the use of generalized asymptotic expansions, cases are examined for which
linearized Euler equations are a good approximation in the core flow. The extraction of the antisymmetric part of the problem
leads to a new and promising approach of the flow structure understanding. Comparisons with Navier-Stokes solutions demonstrate
the relevance of the proposed approach.
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