Dipole Approximation in the Calculation of the Perturbed Velocities

Oleg Solovyov 1 , Sergey Yeryomenko 2 , Vitaliy Kobrin 3  and Yuriy Vorobyov 4
  • 1 Chuguev aircraft repair plant, Chuguev-1, Kharkov region, 63501, Ukraine, Phone: +38 05746 42103
  • 2 National Aerospace University - Kharkov Aviation Institute, Kharkov, 61070, Ukraine, Phone: +38 057788 4101
  • 3 National Aerospace University - Kharkov Aviation Institute, Kharkov, 61070, Ukraine, Phone: +38 057788 4111
  • 4 National Aerospace University - Kharkov Aviation Institute, Kharkov, 61070, Ukraine, Phone: +38 057788 4104

Abstract

In this article we consider one of the approaches aimed at reducing time of calculation of aerodynamic characteristics of the studied objects using discrete vortex method. Also, accuracy assessment of calculation of aerodynamic characteristics was performed.

Analysis of the obtained dependences allows us to make a conclusion that the considered approach to the calculation of the functions of the mutual influence on the stages of formation of the system of linear algebraic equations, position of vortex sheet nodes as well as aerodynamic loads reduces hardware costs about three times, with a relative error of less than 4%.

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  • 1. Belotserkovsky C.M., Nisht M.I. (1978) Attached and detached airflow around the thin wings with ideal fluid. - Moscow: Nauka.

  • 2. Averyanov A.A., Eremenko S.M., Ovchinnikov O.V., Popov V.M. (1998) To the construction of the numerical solution of problems of flow of objects by the discrete vortex method. Scientific Vestnik MGTU GA. Ser. Aerodynamics and stability. 1998, No. 2.

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