NDLI: The structure and evolution of a two-dimensional H2/O2/Ar cellular detonation

Content Provider	Springer Nature Link
Author	Hu, X. Y. Zhang, D. L. Khoo, B. C. Jiang, Z. L.
Copyright Year	2005
Abstract	This paper reports on two-dimensional numerical simulation of cellular detonation wave in a $\rm {H_2}$ / $\rm {O_2}$ / $\rm {Ar}$ mixture with low initial pressure using a detailed chemical reaction model and high order WENO scheme. Before the final equilibrium structure is produced, a fairly regular but still non-equilibrium mode is observed during the early stage of structure formation process. The numerically tracked detonation cells show that the cell size always adapts to the channel height such that the cell ratio is fairly independent of the grid sizes and initial and boundary conditions. During the structural evolution in a detonation cell, even as the simulated detonation wave characteristics suggest the presence of an ordinary detonation, the evolving instantaneous detonation state indicates a mainly underdriven state. As a considerable region of the gas mixture in a cell is observed to be ignited by the incident wave and transverse wave, it is further suggested that these two said waves play an essential role in the detonation propagation.
Starting Page	37
Ending Page	44
Page Count	8
File Format	PDF
ISSN	09381287
Journal	Shock Waves
Volume Number	14
Issue Number	1-2
e-ISSN	14322153
Language	English
Publisher	Springer-Verlag
Publisher Date	2005-01-01
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	detonation cellular structure cellular characteristics ignition roles Mechanics, Fluids, Thermodynamics Fluids Thermodynamics Acoustics Condensed Matter Solid State Physics and Spectroscopy
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Mechanical Engineering

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