[1]杨磊,杨向龙,李焕威,等.爆轰波进入不可燃突扩管道行为研究[J].深圳大学学报理工版,2008,25(2):129-133.
 YANG Lei,YANG Xiang-long,LI Huan-wei,et al.Detonation wave propagation in an incombustible abrupt expansion pipe[J].Journal of Shenzhen University Science and Engineering,2008,25(2):129-133.
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爆轰波进入不可燃突扩管道行为研究()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第25卷
期数:
2008年2期
页码:
129-133
栏目:
土木建筑工程
出版日期:
2008-04-30

文章信息/Info

Title:
Detonation wave propagation in an incombustible abrupt expansion pipe
文章编号:
1000-2618(2008)02-0129-05
作者:
杨磊1杨向龙1李焕威2黄中伟1
1)深圳大学土木工程系,深圳518060;
2)深圳市建筑设计研究院,深圳518010
Author(s):
YANG Lei1YANG Xiang-long1LI Huan-wei2and HUANG Zhong-wei1
1)College of Civil Engineering,Shenzhen University,Shenzhen 518060,P.R.China
2)Shenzhen General Institute of Architectural Design and Research,Shenzhen 518010,P.R.China
关键词:
爆轰波不可燃突扩管道有限体积法激波反射
Keywords:
detonation waveincombustible abrupt expansion pipenumerical simulationshock reflection
分类号:
O 381;X 932
文献标志码:
A
摘要:
对爆轰波进入不可燃突扩管道后的传播规律及压力分布进行实验研究、数值模拟和理论分析.实验结果显示,爆轰波进入突扩管道一定距离后管道内压力会突升,随后压力曲线趋于平缓,在靠近封闭端面附近的压力又再次升高.采用自适应有限体积程序结合基元化学反应模型对流场进行了数值模拟.结果表明,爆轰波进入不可燃突扩管道后,化学反应停止,爆轰波衰减为激波.由于管道横截面的突然增大,激波在扩张段入口处发生绕射,平面波阵面逐渐演变为球面波阵面.该球面波阵面在向前传播的过程中与空腔上壁面先后发生规则反射和马赫反射.在发生马赫反射的位置,激波波后压力急剧升高.随马赫杆渐增,球面波阵面逐渐被抹平,最终再次形成平面激波.该平面激波到达封闭端面后又将发生反射,造成靠近封闭端面处的压力上升.
Abstract:
An investigation of propagation of hydrogen-oxygen mixture’s detonation wave entering an abrupt expansion pipe was carried out experimentally and numerically.Experimental results show that the pressure will rise suddenly after detonation wave enters the abrupt expansion pipe, and the pressure will rise again at the pipe end.Self-adaptive finite volume method combined with kinetic chemical reaction model was programmed to simulate the flow field.Numerical results show that once the detonation wave enters the abrupt expansion pipe,chemical reaction stops,and detonation wave is attenuated into shock wave.The shock wave is diffracted around connection area, and its wave front is evolved into a spherical one.Regular reflection and Mach reflection occur subsequently due to the modified reflection angle.The pressure increases rapidly at the position of Mach reflection.Due to the Mach stem growth,the spherical wave flattens and evolves into a plane shock wave.When the plane shock arrives at the tube end,another reflection occurs and the pressure increases again.

参考文献/References:

[1]Ohyagi S,Obara T,Hoshi S,等.爆轰波在后台阶的绕射和二次点火[J].激波,2002,12(3) :221-226(英文版).
[2]Jones D A,Kemister G,Tonello N A,等.氢氧爆轰波在扩张截面内二次点火的数值模拟研究[J].激波,2000,10(1) :31-41(英文版).
[3]杜扬,沈伟,周建忠.爆轰波在突扩通道中传播的数值模拟研究[J].爆炸与冲击,2004,24(1) :75-79.
[4]孙宇峰,张德良,胡宗民,等.氢氧爆轰波在变截面扩张管道中传播的数值模拟[J].爆炸与冲击,2004,24(5):385-390.
[5]邓博,胡宗民,滕宏辉,等.爆轰波胞格结构在变截面管道发展的数值研究[J].中国科学G辑:物理学、力学、天文学,2007,50(6): 797-808(英文版).
[6]Robert J Kee,Fran M Rupley,Meeks E,等.Chemkin-III:用于气相化学和等离子体动力学分析的Fortran语言程序包[C]//UC-405,Sandia国家实验室96-8216.美国利佛莫尔:Sandia国家实验室,1996(英文版).
[7]孙明宇.激波与固体边界相互作用的实验和数值研究[D].日本仙台:日本东北大学,1998(英文版).
[8]韩肇元,尹协振.激波动力学[M].荷兰:Kluwer学术出版社科学出版分社,1993(英文版).

[1]Ohyagi S,Obara T,Hoshi S,et al.Diffraction and re-initiation of detonations behind a backward-facing step [ J ].Shock Waves,2002,12(3) :221-226.
[2]Jones D A,Kemister G,Tonello N A,et al.Numerical simulation of detonation reignition in H2-O2 mixtures in area expansions[J].Shock Waves,2000,10(1) :33-41.
[3]DU Yang,SHEN Wei,ZHOU Jian-zhong,et al.Numerical simulation of detonation wave propagating through the channels with suddenly expending section [J].Explosion and Shock Waves,2004,24(1):75-79(in Chinese).
[4]SUN Yu-feng,ZHANG De-liang,HU Zong-min,et al.Numerical simulation of hydrogen-oxygen detonation wave propagation in an expansion chamber[J].Explosion and Shock Waves,2004,24(5):385-390(in Chinese).
[5]DENG Bo,HU Zong-min,TENG-Hong-hui,et al.Numerical investigation on detonation cell evolution in a channel with area-changing cross section[J].Science in China Series G:Physics,Mechanics & Astonomy,2007,50(6):797-808.
[6]Robert J Kee,Fran M Rupley,Meeks E,et al.Chemkin-III:a fortran chemical kinetics package for the analysis of gas-phase chemical and plasma kinetics[C]//UC-405,SAND96-8216.Livermore USA:Sandia National Laboratory,1996.
[7]SUN Ming-yu,Numerical and experimental studies of shock wave interaction with bodies[D]. Sendai Japan:Tohoku University,1998.
[8]HAN Zhao-yuan,YIN Xie-zhen.Shock Dynamics[M].Holand:Kluwer Academic Publishers,Science Press,1993.

备注/Memo

备注/Memo:
收稿日期:2006-12-04;修回日期:2008-02-19
基金项目:国家自然科学基金资助项目(10472047); 深圳大学科研启动基金资助项目(2006016)
作者简介:杨磊(1978-),男(汉族),安徽省合肥市人,深圳大学讲师、博士.E-mail:yanglei@szu.edu.cn
通讯作者:黄中伟(1957-),男(汉族),深圳大学教授、博士.中国科学技术大学客座教授.E-mail:huangzw@szu.edu.cn
更新日期/Last Update: 2008-05-09