Please use this identifier to cite or link to this item:
Title: The evolution of a detonation wave in a variable cross-sectional chamber
Authors: Qu, Q.
Khoo, B.C. 
Dou, H.-S. 
Tsai, H.M. 
Keywords: Cellular structure
Localized explosion
Transition length
Issue Date: Aug-2008
Citation: Qu, Q., Khoo, B.C., Dou, H.-S., Tsai, H.M. (2008-08). The evolution of a detonation wave in a variable cross-sectional chamber. Shock Waves 18 (3) : 213-223. ScholarBank@NUS Repository.
Abstract: A two-dimensional numerical simulation has been performed to study the interaction of a gaseous detonation wave with obliquely inclined surfaces in a variable cross-sectional chamber. The weighted essentially non-oscillatory (WENO) numerical scheme with a relatively low resolution grid is employed. A detailed elementary chemical reaction model with 9 species and 19 elementary reactions is used for a stoichiometric oxy-hydrogen mixture diluted with argon. In this work, we study the effect of area expansion and contraction on the main/gross features of the detonation cellular structures in the presence of detonation reflection, diffraction and localized explosion. The result shows that there exists a transition region as the detonation wave propagates through the converging/diverging chamber. Within the transition region, the initial regular detonation cells become distorted and irregular before they re-obtain their regularity. While the ultimate regular cell size and the length of the transition region are strongly affected by the converging/diverging angle, the width/length ratio of the cells is fairly independent of it. A localized explosion near the wall is found as the detonation wave propagates in the diverging chamber. © 2008 Springer-Verlag.
Source Title: Shock Waves
ISSN: 09381287
DOI: 10.1007/s00193-008-0157-7
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Apr 14, 2021


checked on Apr 14, 2021

Page view(s)

checked on Apr 13, 2021

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.