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Nonlinear effects caused by pulsed periodic supply of energy in the vicinity of a symmetric airfoil in a transonic flow

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Journal of Applied Mechanics and Technical Physics Aims and scope

Abstract

Changes in the structure of a transonic flow around a symmetric airfoil and a decrease in the wave drag of the latter, depending on the energy-supply period and on localization and shape of the energy-supply zone, are considered by means of the numerical solution of two-dimensional unsteady equations of gas dynamics. Energy addition to the gas ahead of the closing shock wave in an immediate vicinity of the contour in zones extended along the contour is found to significantly reduce the wave drag of the airfoil. The nature of this decrease in drag is clarified. The existence of a limiting frequency of energy supply is found.

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Authors and Affiliations

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

    S. M. Aulchenko, V. P. Zamuraev & A. P. Kalinina

Authors
  1. S. M. Aulchenko
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  2. V. P. Zamuraev
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  3. A. P. Kalinina
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Translated from Prikladnaya Mekhanika i Tekhnicheskaya Fizika, Vol. 47, No. 3, pp. 64–71, May–June, 2006.

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Aulchenko, S.M., Zamuraev, V.P. & Kalinina, A.P. Nonlinear effects caused by pulsed periodic supply of energy in the vicinity of a symmetric airfoil in a transonic flow. J Appl Mech Tech Phys 47, 359–365 (2006). https://doi.org/10.1007/s10808-006-0063-7

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  • DOI: https://doi.org/10.1007/s10808-006-0063-7

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