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Passive laminar drag reduction. (Analyse de la réduction passive de la traînée laminaire.) (French. Abridged English version) Zbl 0935.76022

Summary: We use a multi-layer model to describe the influence of wall perturbations on the boundary layer flow. The originality of the method lies in the use of non-regular second-order asymptotic expansions arising from the presence of two longitudinal length scales. Using the lower deck canonical problem, we study the influence of wall perturbations on laminar drag reduction.

MSC:

76D10 Boundary-layer theory, separation and reattachment, higher-order effects
76M45 Asymptotic methods, singular perturbations applied to problems in fluid mechanics
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