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Mach reflection of a ring shock wave from the axis of symmetry

Published online by Cambridge University Press:  26 April 2006

E. M. Barkhudarov ,
M. O. Mdivnishvili ,
I. V. Sokolov ,
M. I. Taktakishvili  and
V. E. Terekhin
I. V. Sokolov
Affiliation:
General Physics Institute, Vavilova 38, 117942 Moscow, USSR
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Abstract

The paper is devoted to the theoretical and experimental investigation of the ring (toroidal) shock wave near the axis of symmetry. The theoretical approach is based upon the Chester–Chisnell–Whitman method. The experimental toroidal shock wave is generated by a novel inducer and visualized by the shadow technique. Attention is paid to the manner of reflection of the shock wave from the axis of symmetry. This reflection appears to be irregular even at small distances from the centre of the ring. This phenomenon is due to the cumulative acceleration of the converging axisymmetric shock front near the axis. The acceleration results in an increase in the incidence angle up to that characteristic of Mach (irregular) reflection.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 226 , May 1991 , pp. 497 - 509
Copyright
© 1991 Cambridge University Press

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