Email this article Estimation of the lifetime of a trapped vortex in a circular cavern on a semicircular airfoil streamlined at a zero angle of attack after switching off slot suction
- 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 Technological University
- St. Petersburg State University of Civil Aviation
- Research and Development Moscow Complex of Central Aerohydrodynamic Institute
- Issue: Vol 43, No 4 (2017)
- Pages: 338-340
- Section: Article
- URL: https://bakhtiniada.ru/1063-7850/article/view/204160
- DOI: https://doi.org/10.1134/S1063785017040101
- ID: 204160
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Abstract
The restructuring of the periodic structure of a turbulent streamline for a semicircular airfoil at a zero angle of attack with a system of slot suction from the circular cavern switched off is calculated. Multiblock numerical methods are applied for solution of Reynolds-averaged nonstationary Navier–Stokes equations closed using the modified shear-stress transfer model taking into account flow line curvature. The lifetime of a trapped vortex in a circular cavern is estimated.
About the authors
S. A. Isaev
Kazan National Research Technological University; St. Petersburg State University of Civil Aviation
Author for correspondence.
Email: isaev3612@yandex.ru
Russian Federation, Kazan, Tatarstan, 420015; 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 Technological University
Email: isaev3612@yandex.ru
Russian Federation, Kazan, Tatarstan, 420015
A. E. Usachov
Research and Development Moscow Complex of Central Aerohydrodynamic Institute
Email: isaev3612@yandex.ru
Russian Federation, Moscow, 107005
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