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|Title:||The cellular structure of a two-dimensional H2/O2/Ar detonation wave|
|Citation:||Hu, X.Y., Khoo, B.C., Zhang, D.L., Jiang, Z.L. (2004-06). The cellular structure of a two-dimensional H2/O2/Ar detonation wave. Combustion Theory and Modelling 8 (2) : 339-359. ScholarBank@NUS Repository. https://doi.org/10.1088/1364-7830/8/2/008|
|Abstract:||In this paper, the cellular structure of a two-dimensional detonation wave in a low pressure H2/O2/Ar mixture calculated with a detailed chemical reaction model, high order scheme and high resolution grids is investigated. The regular cellular structure is produced about I ms after introducing perturbations in the reaction zone of a steady one-dimensional detonation wave. It is found from the present resolution study that the discrepancies concerning the structure type arising from the coarser grid employed can be resolved using a sufficiently fine grid size of 0.05 mm and below and shows a double-Machlike strong-type configuration. During the structure evolution process, the structure configuration does not change much in the periods before and after the triple point collision. Through the triple point collision, three regular collision processes are observed and are followed by a quick change to the double-Mach-like configuration. The simulated structure tracks show that there are three different tracks associated with different triple points or the kink on the transverse wave. Comparisons with previous work and experiments indicate the presence of a strong structure for an ordinary detonation. © 2004 IOP Publishing Ltd.|
|Source Title:||Combustion Theory and Modelling|
|Appears in Collections:||Staff Publications|
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