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Prikladnaya Mekhanika i Tekhnicheskaya Fizika, 2008, Volume 49, Issue 6, Pages 82–87
(Mi pmtf1974)
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This article is cited in 3 scientific papers (total in 3 papers)
Effect of one-sided unsteady energy supply on aerodynamic characteristics of airfoils in a transonic flow
S. M. Aulchenkoa, V. P. Zamuraevab, A. P. Kalininaab a Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090, Russia
b Novosibirsk State University, Novosibirsk, 630090, Russia
Abstract:
The possibility of controlling the aerodynamic characteristics of airfoils in transonic flight regimes by means of one-sided pulsed-periodic energy supply is studied. Based on the numerical solution of two-dimensional unsteady gas-dynamic equations, the change in the flow structure in the vicinity of a symmetric airfoil at different angles of attack and the aerodynamic characteristics of the airfoil as functions of the amount of energy supplied asymmetrically (with respect to the airfoil) are determined. The results obtained are compared with the data calculated for the flow past the airfoil at different angles of attack without energy supply. It is found that a given lift force can be obtained with the use of energy supply at a much better lift-to-drag ratio of the airfoil, as compared to the case of the flow past the airfoil at an angle of attack. The moment characteristics of the airfoil are found.
Keywords:
transonic flow, aerodynamic characteristics, energy supply, angle of attack, Euler equations.
Received: 23.10.2007
Citation:
S. M. Aulchenko, V. P. Zamuraev, A. P. Kalinina, “Effect of one-sided unsteady energy supply on aerodynamic characteristics of airfoils in a transonic flow”, Prikl. Mekh. Tekh. Fiz., 49:6 (2008), 82–87; J. Appl. Mech. Tech. Phys., 49:6 (2008), 957–961
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https://www.mathnet.ru/eng/pmtf1974 https://www.mathnet.ru/eng/pmtf/v49/i6/p82
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