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Optimization of winglets of lifting systems based on the minimum induced drag criterion

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Thermophysics and Aeromechanics Aims and scope

Abstract

A numerical method of induced drag reduction by means of improving the aerodynamic performance of wing-lets of lifting systems is presented. The method allows one to optimize the distribution of the intensity of free vortices at the wingtips in the Trefftz plane for a prescribed lift force and unchanged base wing geometry. Optimization calculations of various lift systems are performed, including the STR- 40DT regional aircraft developed at the Siberian Aeronautical Research Institute named after S.A. Chaplygin (SibNIA). Good agreement of the numerical and experimental results is noted.

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Authors and Affiliations

  1. Siberian Aeronautical Research Institute named after S.A. Chaplygin (SibNIA), Novosibirsk, Russia

    V. G. Borisova & V. A. Silantiev

Authors
  1. V. G. Borisova
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  2. V. A. Silantiev
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Correspondence to V. G. Borisova.

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Borisova, V.G., Silantiev, V.A. Optimization of winglets of lifting systems based on the minimum induced drag criterion. Thermophys. Aeromech. 29, 411–422 (2022). https://doi.org/10.1134/S086986432203009X

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  • DOI: https://doi.org/10.1134/S086986432203009X

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