The oscillating vortex generator: a boundary layer propulsion and flow control device

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  • What: In this paper the low-speed flow over a small aerofoil that executes plunging oscillations near a flat plate boundary layer is analysed computationally at low Reynolds numbers to determine the effect of wall distance and reduced frequency and to validate the code with the LDV flow measurements obtained by Dohring . The analysis presented in this paper shows that small foils oscillating in the pure plunge mode in or close to the boundary layer of a flat plate generate significantly larger thrust than foils oscillating in an unbounded flow of equal Reynolds number, thus indicating the . . .

     

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