Criterial Analysis of the Effect of Vibrations of an Airfoil Surface Element on the Transonic Flow Structure
S. M. Aulchenko1, V. P. Zamuraev1,2, A. P. Kalinina1,2
1Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
2Novosibirsk State University, Novosibirsk, 630090 Russia
Keywords: transonic flow, airfoil, vibration of the surface element, wave drag, Euler equations
Abstract
A criterial analysis of the effect of forced vibrations of airfoil surface elements on the shock wave structure of a transonic flow around the airfoil is performed. The parameter responsible for regimes of interaction of vibrationally moving zones of the airfoil with the closing shock wave is determined. The influence of this parameter on the wave drag of the airfoil is studied.
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