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Development of three-dimensional turbulent separation in the neighborhood of incident crossing shock waves

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Thermophysics and Aeromechanics Aims and scope

Abstract

The results are presented for experimental investigation of the peculiarities of the development of three-dimensional turbulent separated flows on a flat surface for the Mach number M∞ = 4 and the Reynolds number Re1 ∼ 55·106 m−1 under the conditions of the flow around two identical cylindrical bodies of revolution of diameter D = 50 mm and the body aspect ratio L b/D = 5 with conical forebodies with semi-apex angles βc = 30, 20, 15, and 10° located above plate in parallel to one another and to the flow. The typical stages of the three-dimensional separation development are considered under the reducing distance between the axes of the bodies within the range of Z = Δz/D = 1.06–3.0 at their fixed distance from the surface (Y = Δy/D = 0.96). The topology of limiting streamlines and the peculiarities of pressure fields on the surface as well as the gasdynamic structure of separated flows arising at the interaction of crossing bow shocks propagating from the bodies and at the interaction of secondary disturbances with the boundary layer are analysed.

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Authors and Affiliations

  1. Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia

    E. K. Derunov, A. A. Zheltovodov & A. I. Maksimov

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  1. E. K. Derunov
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  2. A. A. Zheltovodov
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  3. A. I. Maksimov
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Derunov, E.K., Zheltovodov, A.A. & Maksimov, A.I. Development of three-dimensional turbulent separation in the neighborhood of incident crossing shock waves. Thermophys. Aeromech. 15, 29–54 (2008). https://doi.org/10.1134/S0869864308010034

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  • DOI: https://doi.org/10.1134/S0869864308010034

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