Detonation in supersonic radial outflow

Aslan R. Kasimov; Svyatoslav Korneev

doi:10.1017/jfm.2014.598

Detonation in supersonic radial outflow

Aslan R. Kasimov, Svyatoslav Korneev

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

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. © 2014 Cambridge University Press.

Original language	English (US)
Pages (from-to)	313-341
Number of pages	29
Journal	Journal of Fluid Mechanics
Volume	760
DOIs	https://doi.org/10.1017/jfm.2014.598
State	Published - Nov 7 2014

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Condensed Matter Physics

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10.1017/jfm.2014.598

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title = "Detonation in supersonic radial outflow",

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. {\textcopyright} 2014 Cambridge University Press.",

author = "Kasimov, {Aslan R.} and Svyatoslav Korneev",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: Authors gratefully acknowledge financial support by King Abdullah University of Science and Technology (KAUST). We also thank B Taylor of NRL for his generous permission to use and modify the solver for the reactive Euler equations that he has originally developed as part of Taylor et al. (2009). We also thank the referees for their critical remarks that helped us understand the multitude of issues with a practical realization of the system and we hope helped improve the presentation of our results.",

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AU - Korneev, Svyatoslav

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N2 - 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. © 2014 Cambridge University Press.

AB - 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. © 2014 Cambridge University Press.

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JO - Journal of Fluid Mechanics

JF - Journal of Fluid Mechanics

ER -

Detonation in supersonic radial outflow

Abstract

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