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Third Symposium on Turbulence and Shear Flow Phenomena
June, 25-27, 2003, International Center, Sendai, Japan

DOI: 10.1615/TSFP3

STREAMWISE VORTICES FOR TURBULENT BOUNDARY LAYER SEPARATION CONTROL

pages 151-156
DOI: 10.1615/TSFP3.260
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Краткое описание

Streamwise vortices were employed to control a separating adverse pressure gradient turbulent boundary layer. Initially non-equidistant vortices become and remain equidistant and are confined to the boundary layer. The crucial parameter for successful backflow elimination is the amount of circulation introduced and the exact streamwise vortex generator position is only of indirect importance. This is an effect of the conserved circulation and the confined vortices. The vortices change the mean velocity profile and the asymptotic state is an S-shaped two-dimensional boundary layer determined by the vortex generator height.

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