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Article information
2013 , Volume 18, ¹ 1, p.74-86
Pinchukov V.I.
Modeling of dynamics of unsteady flows near blunt bodies for large time intervals
Inhomogenious compressible flows are assumed to be self-oscillatory, according to the suggested and developed mechanism of self-oscillations. Inhomogenious flows near cylinders and cones with spherical blunts are modeled numerically, namely flows with a subsonic isobaric jet in the outer supersonic stream and flows with a backward supersonic jet running out from a forehead surface. Well known self-oscillatory interactions of supersonic jet with a plane surface and with a cavity are considered as test problems. Two dimensional Reynolds equations along with algebraic model of turbulent viscosity are solved by the third order Runge-Kutta scheme. Self-oscillations of various amplitudes and types are found in inhomogenious flows near cylinders and cones with spherical blunts.
[full text]
Keywords: self-oscillatory flows, Reynolds equations, high resolution methods, Runge-Kutta schemes
Author(s):
Pinchukov Vladimir Ivanovich
Dr. , Senior Scientist
Position: Leading research officer
Office: Institute of Computational Technologies SB RAS
Address: 630090, Russia, Novosibirsk, Ac. Lavrentiev ave., 6
Phone Office: (383) 330 73 73
E-mail: pinchvi@net.ict.nsc.ru
Bibliography link:
Pinchukov V.I. Modeling of dynamics of unsteady flows near blunt bodies for large time intervals // Computational technologies. 2013. V. 18. ¹ 1. P. 74-86
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