Email this article Controlling the Flow past a Semicircular Airfoil at Zero Angle of Attack Using Slot Suction in One or Two Vortex Cells for Attaining Extremal Lift
- Authors: Isaev S.A.1,2, Baranov P.A.2, Sudakov A.G.2, Popov I.A.1, Usachov A.E.3
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Affiliations:
- Kazan National Research Technical University, Kazan
- St. Petersburg State University of Civil Aviation
- Moscow Complex, Central Aerohydrodynamic Institute
- Issue: Vol 43, No 12 (2017)
- Pages: 1115-1117
- Section: Article
- URL: https://bakhtiniada.ru/1063-7850/article/view/206879
- DOI: https://doi.org/10.1134/S1063785017120203
- ID: 206879
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Abstract
Calculations using multiblock computational technologies and a model of shear-stress transport modified with allowance for the curvature of streamlines in turbulent airflow were performed at a zero angle of attack for a semicircular airfoil containing one or two surface vortex cells with slot suction. The results showed evidence of stabilization of a nearly undetached flow and attainment of an extremal lift of Cy = 5.2 and a lift-to-drag ratio of K = 24 with allowance for energy losses for suction in the vortex cells.
About the authors
S. A. Isaev
Kazan National Research Technical University, Kazan; St. Petersburg State University of Civil Aviation
Author for correspondence.
Email: isaev3612@yandex.ru
Russian Federation, Tatarstan, 420111; St. Petersburg, 196210
P. A. Baranov
St. Petersburg State University of Civil Aviation
Email: isaev3612@yandex.ru
Russian Federation, St. Petersburg, 196210
A. G. Sudakov
St. Petersburg State University of Civil Aviation
Email: isaev3612@yandex.ru
Russian Federation, St. Petersburg, 196210
I. A. Popov
Kazan National Research Technical University, Kazan
Email: isaev3612@yandex.ru
Russian Federation, Tatarstan, 420111
A. E. Usachov
Moscow Complex, Central Aerohydrodynamic Institute
Email: isaev3612@yandex.ru
Russian Federation, Moscow, 107005
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