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Detonation in supersonic radial outflow

Published online by Cambridge University Press:  07 November 2014

Aslan R. Kasimov*
Affiliation:
Applied Mathematics and Computational Science, King Abdullah University of Science and Technology, Room 4-2226, 4700 KAUST, Thuwal 23955-6900, Saudi Arabia
Svyatoslav V. Korneev
Affiliation:
Applied Mathematics and Computational Science, King Abdullah University of Science and Technology, Room 4-2226, 4700 KAUST, Thuwal 23955-6900, Saudi Arabia
*
Email address for correspondence: aslan.kasimov@kaust.edu.sa

Abstract

We report on the structure and dynamics of gaseous detonation stabilized in a supersonic flow emanating radially from a central source. The steady-state solutions are computed and their range of existence is investigated. Two-dimensional simulations are carried out in order to explore the stability of the steady-state solutions. It is found that both collapsing and expanding two-dimensional cellular detonations exist. The latter can be stabilized by putting several rigid obstacles in the flow downstream of the steady-state sonic locus. The problem of initiation of standing detonation stabilized in the radial flow is also investigated numerically.

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Type
Papers
Copyright
© 2014 Cambridge University Press 

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