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Numerical Simulation of a Two-Dimensional Spatial Unsteady Flow Past Thick Airfoils and Low-Aspect-Ratio Wings with Slot Suction in a Vortex Cell as Applied to Hybrid Aerostatic Aircraft

  • HYDRODYNAMICS IN TECHNOLOGICAL PROCESSES
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Journal of Engineering Physics and Thermophysics Aims and scope

Using numerical simulation on the basis of Reynolds-averaged Navier–Stokes equations in their closure with the SST turbulence model, a comparison has been conducted of the self-oscillating modes of flow around a thick airfoil and a low-aspect-ratio wing with a vortex cell in the presence or absence of slot suction. The inclusion of suction with placement of a ventilator in the off take channel and with jet ejection in the vicinity of the back edge of a two-dimensional airfoil, and also suction into the engine unit on the inner contour of the vortex cell of a thick airfoil stabilize the flow past bodies and improve substantially their aerodynamic characteristics. In a two-dimensional case, the aerodynamic quality increases to 7 and in a three-dimensional variant, it increases to 2.7.

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Authors and Affiliations

  1. St. Petersburg State University of Civil Aviation, 38 Pilotov Str., St. Petersburg, 196210, Russia

    S. A. Isaev & A. G. Sudakov

  2. Moscow Research Complex TsAGI, 17 Radio Str., Moscow, 107005, Russia

    A. E. Usachov & S. A. Sustin

  3. St. Petersburg Marine State Technical University, 3 Lotsmanskaya Str., St. Petersburg, 190121, Russia

    S. A. Isaev, D. V. Nikushchenko & N. V. Tryaskin

Authors
  1. S. A. Isaev
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  2. A. E. Usachov
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  3. S. A. Sustin
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  4. D. V. Nikushchenko
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  5. A. G. Sudakov
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  6. N. V. Tryaskin
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Correspondence to S. A. Isaev.

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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 96, No. 3, pp. 746–757, May–June, 2023.

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Isaev, S.A., Usachov, A.E., Sustin, S.A. et al. Numerical Simulation of a Two-Dimensional Spatial Unsteady Flow Past Thick Airfoils and Low-Aspect-Ratio Wings with Slot Suction in a Vortex Cell as Applied to Hybrid Aerostatic Aircraft. J Eng Phys Thermophy 96, 742–753 (2023). https://doi.org/10.1007/s10891-023-02736-7

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  • DOI: https://doi.org/10.1007/s10891-023-02736-7

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