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Communication Dans Un Congrès Année : 2009

Global nonlinear dynamics of thin aerofoil wakes

Résumé

In the present investigation of thin aerofoil wakes we compare the global nonlinear dynamics, obtained by direct numerical simulations, to the associated local instability features, derived from linear stability analyses. A given configuration depends on two control parameters: the Reynolds number Re and the adverse pressure gradient m (with m < 0) prevailing at the aerofoil trailing edge. Global instability is found to occur for large enough Re and |m|; the naturally selected frequency is determined by the local absolute frequency prevailing at the trailing edge.
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Dates et versions

hal-00633233 , version 1 (18-10-2011)

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Benoît Pier, Nigel Peake. Global nonlinear dynamics of thin aerofoil wakes. Seventh IUTAM Symposium on Laminar-Turbulent Transition, Jun 2009, Stockholm, Sweden. pp.319-324, ⟨10.1007/978-90-481-3723-7_51⟩. ⟨hal-00633233⟩
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