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Shock wave bifurcation in convergent–divergent channels of rectangular cross section

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Abstract

This work addresses two- and three-dimensional turbulent flow in simple channels, modeling the air intakes of rectangular cross section. Flow regimes with a supersonic free stream and supersonic velocities at the throat or immediately downstream of the throat are considered. Bifurcations of the shock wave arising ahead of the cowl are studied numerically. Solutions of the Reynolds-averaged Navier–Stokes equations are obtained with a finite-volume solver of second-order accuracy on fine computational meshes. The solutions reveal jumps of the shock leg position with variations of the free-stream Mach number. The dependence of the shock position on the cowl slope and streamwise location of the throat is examined.

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Acknowledgments

This research was performed using computational resources provided by the Computational Center of St. Petersburg State University. The work was supported by the Russian Foundation for Basic Research under Grant No. 13-08-00288.

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  1. St. Petersburg State University, St. Petersburg, Russia

    A. Kuzmin

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  1. A. Kuzmin
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Correspondence to A. Kuzmin.

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Communicated by F. Lu and A. Higgins.

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Kuzmin, A. Shock wave bifurcation in convergent–divergent channels of rectangular cross section. Shock Waves 26, 741–747 (2016). https://doi.org/10.1007/s00193-016-0624-5

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