用环形激波聚焦实现爆轰波直接起爆的数值模拟
Numerical investigation of detonation direct initiation induced by toroidal shock wave focusing
查看参考文献13篇
文摘
|
利用基元反应模型和有限体积法对环形激波在可燃气体中聚焦实现爆轰波直接起爆进行了数值模拟.研究结果表明,标准状态下的氢气-空气混合气体在马赫数为3.1以上的环形激波聚焦产生的高温高压区作用下会诱发可燃气体的直接起爆形成爆轰波,爆轰波与激波和接触间断相互作用产生了复杂的波系结构;爆轰波爆点位置在对称轴上并不是固定的点,而是随着初始激波马赫数的变化而发生移动;可燃气体初始温度和压力对起爆临界马赫数都有影响,但是初始温度的影响大得多. |
其他语种文摘
|
Detailed chemical reaction model and finite volume method are used to numerically investi-gate detonation direct initiation induced by the toroidal shock wave focusing in combustible gas mix-ture. Numerical results show that detonation direct initiation will be initiated by toroidal shock wave focusing in the standard hydrogen-air gas mixture if the incident Mach number is above 3. 1. Then the detonation wave interacts with shock waves and contact surfaces, which results in complex wave sys-tem. The initiation point is not fixed on the focusing point but varies with the incident shock Mach number. The critical Mach number is influenced by the initial pressure and temperature, but the tem-perature is the main factor. |
来源
|
爆炸与冲击
,2005,25(6):512-518 【核心库】
|
关键词
|
爆炸力学
;
直接起爆
;
激波聚焦
;
爆轰波
;
数值模拟
|
地址
|
1.
中国科学院力学研究所, 高温气体动力学重点实验室, 北京, 100080
2.
中国科学技术大学力学和机械工程系, 安徽, 合肥, 230026
|
语种
|
中文 |
文献类型
|
研究性论文 |
ISSN
|
1001-1455 |
学科
|
力学 |
基金
|
国家自然科学基金项目
|
文献收藏号
|
CSCD:2129045
|
参考文献 共
13
共1页
|
1.
姜宗林. 爆轰驱动高焓激波风洞及其瞬态测试技术的研究与进展.
力学进展,2001,31(2):312-317
|
被引
9
次
|
|
|
|
2.
Gronig H. Past.
Proceeding of the International Workshop on Shock Wave Focusing,1989:1-37
|
被引
1
次
|
|
|
|
3.
Lee J. Dynamic parameters of gaseous detonations[J].
Annual review of fluid mechanics,1984,16:311-336
|
被引
35
次
|
|
|
|
4.
Radulescu M I. An experimental investigation of the direct initiation of cylindrical detonations[J].
Journal of Fluid Mechanics,2003,480(1):1-24
|
被引
3
次
|
|
|
|
5.
Gelfand B E. Detonation and deflagration initiation at the focusing of shock waves in combustible gaseous mixture[J].
Shock Waves,2000,10(3):197-204
|
被引
25
次
|
|
|
|
6.
Bartenev A M. Effect of reflection type on detonation initiationat shock-wave focusing[J].
Shock Waves,2000,10(3):205-215
|
被引
17
次
|
|
|
|
7.
王春. 激波聚焦点燃高速可燃混合气流的实验研究[D].
激波聚焦点燃高速可燃混合气流的实验研究,2004
|
被引
3
次
|
|
|
|
8.
滕宏辉. 环形激波绕射、反射和聚焦的数值模拟研究.
力学学报,2004,36(1):9-15
|
被引
7
次
|
|
|
|
9.
McBride B J. NASA Glenn Coefficients for Calculating Thermodynamic Properties of Individual Species[R].
NASA Glenn Coefficients for Calculating Thermodynamic Properties of Individual Species.NASA TP 2002-211556,2002
|
被引
1
次
|
|
|
|
10.
Toro E F. Riemann solvers and numerical methods for fluid dynamics[M].
Riemann solvers and numerical methods for fluid dynamics(Second ed),1999
|
被引
2
次
|
|
|
|
11.
Sun M. Conservative smoothing on an adaptive quadrilateral grid[J].
Journal of Computational Physics,1999,150(1):143-180
|
被引
28
次
|
|
|
|
12.
Kee R J. A fortran chemical kinetics package for the analysis of gas-phase chemical and plasma kinetics[R].
Chemkin-Ⅲ:A fortran chemical kinetics package for the analysis of gas-phase chemical and plasma kinetics.UC-405,1996
|
被引
2
次
|
|
|
|
13.
Schultz E. Validation of Detailed Reaction Mechanisms for Detonation Simulation[R].
Validation of Detailed Reaction Mechanisms for Detonation Simulation,Explosion Dynamics Laboratory Report FM99-5,1999
|
被引
1
次
|
|
|
|
|