S. A. Isaev, P. A. Baranov, A. G. Sudakov, I. A. Popov, A. E. Usachov, “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”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 2017, Volume 43, Issue 7,Pages <nobr>32

This article is cited in 4 papers

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

S. A. Isaev^ab, P. A. Baranov^b, A. G. Sudakov^b, I. A. Popov^a, A. E. Usachov^c

^a Kazan National Research Technical University named after A. N. Tupolev
^b Saint-Petersburg State University of Civil Aviation
^c Central Aerohydrodynamic Institute

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.

Received: 24.11.2016

DOI: 10.21883/PJTF.2017.07.44466.16578