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    Detonation in supersonic radial outflow

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    Type
    Article
    Authors
    Kasimov, Aslan R. cc
    Korneev, Svyatoslav cc
    KAUST Department
    Applied Mathematics and Computational Science Program
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Date
    2014-11-07
    Online Publication Date
    2014-11-07
    Print Publication Date
    2014-12
    Permanent link to this record
    http://hdl.handle.net/10754/563848
    
    Metadata
    Show full item record
    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.
    Sponsors
    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.
    Publisher
    Cambridge University Press (CUP)
    Journal
    Journal of Fluid Mechanics
    DOI
    10.1017/jfm.2014.598
    ae974a485f413a2113503eed53cd6c53
    10.1017/jfm.2014.598
    Scopus Count
    Collections
    Articles; Applied Mathematics and Computational Science Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

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