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Modification of turbulent airfoil section flow using a combined control action

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Thermophysics and Aeromechanics Aims and scope

Abstract

Both numerically and experimentally, the possibility of using a combined method to control the incompressible turbulent boundary layer on a symmetric airfoil section of 12-% relative thickness implemented via the blowing/suction of air through a finely perforated section provided on the wing surface part was examined. The study was performed at Reynolds number Rec = 0.7·106 in the range of angles of attack α = −6 ÷ 6°. The mechanism of action of this flow control method on the aerodynamic characteristics of the wing was identified. An ambiguous pattern of the effect due to blowing/suction from the viewpoint of ensuring a maximum lift, a gain in wing lift-to-drag ratio, and a reduction of wing aerodynamic drag was revealed.

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Authors and Affiliations

  1. Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia

    V. I. Kornilov, I. N. Kavun & A. N. Popkov

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  1. V. I. Kornilov
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  2. I. N. Kavun
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  3. A. N. Popkov
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Correspondence to V. I. Kornilov.

Additional information

This work was supported by the Russian Foundation for Basic Research (Grant No. 18-08-00256).

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Kornilov, V.I., Kavun, I.N. & Popkov, A.N. Modification of turbulent airfoil section flow using a combined control action. Thermophys. Aeromech. 26, 165–178 (2019). https://doi.org/10.1134/S0869864319020021

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  • DOI: https://doi.org/10.1134/S0869864319020021

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