Recovery and Suppression of the Detonation of Hydrogen-Air Mixtures at an Obstacle with Orifices

被引：18

作者：

Medvedev, S. P. ^{[1
]}

Khomik, S. V. ^{[1
]}

Gel'fand, B. E. ^{[1
]}

机构：

[1] Russian Acad Sci, NN Semenov Chem Phys Inst, Moscow 119991, Russia

来源：

RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B | 2009年 / 3卷 / 06期

基金：

俄罗斯基础研究基金会;

关键词：

Shock Wave; Detonation Wave; Detonation Product; Detonation Wave Front; Converge Shock Wave;

D O I：

10.1134/S1990793109060165

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

A numerical simulation of the interaction of detonation waves with an obstacle having orifices and an analysis of the results were performed. The calculations were conducted using the 3D GasDynamicTool code for a model gas with parameters of detonation corresponding to a hydrogen-air stoichiometric mixture under normal conditions. Within the framework of the assumptions made, it was shown that, upon interaction with a perforated partition, a detonation wave experiences disintegration accompanied by the formation of unsteady jets of detonation products, with each one being preceded by a shock wave. The simulations demonstrated that the reinitiation of detonation downstream from the partition is determined by the dynamics of the ignition caused by the interaction between the converging shock waves formed ahead of the jets outflowing from neighboring orifices.

引用

页码：963 / 970

页数：8

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