Resonant phenomena in a transonic flow around an airfoil with pulsed periodic energy supply |
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| Authors: | S M Aulchenko V P Zamuraev A P Kalinina |
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| Institution: | 1.Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch,Russian Academy of Sciences,Novosibirsk,Russia;2.Novosibirsk State University,Novosibirsk,Russia |
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| Abstract: | Interaction of a pulsed periodic source of energy with a closing shock wave arising near airfoils in transonic flight is studied.
The evolution of the shock-wave structure of the flow around a symmetric airfoil is examined by solving two-dimensional unsteady
gas-dynamic equations, and a resonant mechanism of interaction is found, which leads to considerable (by an order of magnitude)
reduction of the wave drag of the airfoil. |
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