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Communication Dans Un Congrès Année : 2003

Centrifugal Instability in the Backward-Facing Step

Résumé

Three-dimensional stationary structure of the flow over a backward-facing step is observed experimentally showing a periodicity in the spanwise direction., with longitudinal vortices. A local Rayleigh discriminant and a local Görtler number are computed from numerical simulations. It is shown that the observed instability is consistent with a centrifugal instability raising just downstream the recirculation zone.
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Dates et versions

hal-00174548 , version 1 (24-09-2007)

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  • HAL Id : hal-00174548 , version 1

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Jean-Luc Aider, Jean-François Beaudoin, Olivier Cadot, Jose Eduardo Wesfreid. Centrifugal Instability in the Backward-Facing Step. 13th International Couette Taylor Workshop, Jul 2003, Barcelona, Spain. pp.session 3A. ⟨hal-00174548⟩
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