This article is cited in 4 papers

Effect of localization of pulsed energy addition on the wave drag of an airfoil in a transonic flow

V. P. Zamuraev, A. P. Kalinina

Institute of Theoretical and Applied Mechanics, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090, Russia

Abstract: The possibility of controlling the aerodynamic characteristics of airfoils with the help of local pulsed-periodic energy addition into the flow near the airfoil contour at transonic flight regimes is considered. By means of the numerical solution of two-dimensional unsteady equations of gas dynamics, changes in the flow structure and wave drag of a symmetric airfoil due to changes in localization and shape of energy-addition zones are examined. It is shown that the considered method of controlling airfoil characteristics in transonic flow regimes is rather promising. For a zero angle of attack, the greatest decrease in wave drag is obtained with energy addition at the trailing edge of the airfoil.

Keywords: transonic flow, wave drag, energy addition.

UDC: 533.6.011

Received: 21.07.2004
Accepted: 02.12.2004

 English version: Journal of Applied Mechanics and Technical Physics, 2005, 46:5, 664–669

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