|本期目录/Table of Contents|

[1]朱传杰,林柏泉,江丙友,等. 受限空间内爆燃波瞬态流速与超压的耦合关系[J].燃烧科学与技术,2012,(04):326-330.
 ZHU Chuan-jie,LIN Bai-quan,JIANG Bing-you,et al. Coupled Relationship Between Gas Velocity and Peak Overpressureof Deflagration Wave in Confined Space[J].Journal of Combustion Science and Technology,2012,(04):326-330.
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 受限空间内爆燃波瞬态流速与超压的耦合关系()
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《燃烧科学与技术》[ISSN:1006-8740/CN:12-1240/TK]

卷:
期数:
2012年04
页码:
326-330
栏目:
出版日期:
2012-08-15

文章信息/Info

Title:
 Coupled Relationship Between Gas Velocity and Peak Overpressure
of Deflagration Wave in Confined Space
作者:
 朱传杰林柏泉江丙友刘 谦
 中国矿业大学安全工程学院煤炭资源与安全开采国家重点实验室,徐州 221116
Author(s):
 ZHU Chuan-jieLIN Bai-quanJIANG Bing-youLIU Qian
 State Key Laboratory of Coal Resources and Safe Mining,School of Safety Engineering,
China University of Mining and Technology,Xuzhou 221116,China
关键词:
 瓦斯爆炸爆燃流速超压
Keywords:
 gas explosiondeflagrationvelocityoverpressure
文献标志码:
A
摘要:
 为了奠定不同强度爆炸波扬尘能力的评估基础,采用数值模拟的方法研究了开口型和闭口型系统内爆炸波
前瞬态流速与爆炸超压的定量耦合关系.研究结果表明,煤矿开口型系统的爆炸波和波前流速从波形上分为3 个阶
段,瞬态流速和爆炸超压的关系可以用两个拟合度非常好的线性函数表达,在初始阶段呈线性反比关系,随着爆炸
进一步发展,爆炸超压与流速都呈增大趋势,两者呈线性正比关系.闭口型系统内的爆炸波形呈明显的振荡特征,
对于爆燃波,振荡波有两道,即前驱冲击波的振荡和热压缩波的振荡.由于爆炸波的振荡叠加,使其超压和流速较
开口型系统内的高.爆炸流速的预测,可以采用首次峰值和超压的关系进行预测.
Abstract:
 In order to establish the basis for evaluating the dust lifting ability of shock wave,the simulation on the
relationship between gas velocity and peak overpressure of a deflagration wave has been carried out for both an open
end pipe and a closed end pipe. It was found that blast wave and gas velocity evolution were separately divided into
three stages. The relationship between peak gas velocity and peak overpressure followed a similar linear function. Peak
gas velocity was linearly and inversely proportional to peak overpressure at the initial stage. They were linearly
proportional to each other at the final stage. Shock wave oscillation in confined tunnels was obviously observed. There
were two different reflection waves for deflagration. One is the reflection wave of front shock wave,and the other is
compression wave. The oscillation of blast wave can lead to higher peak overpressure. The oscillation pectrogram plot
of reflection wave and its relationship with arrival time were presented in the paper for the first time.

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备注/Memo

备注/Memo:
 收稿日期:2011-11-27.
基金项目:国家重点基础研究发展计划(973计划)资助项目(2011CB201205);中国矿业大学科研人才基金资助项目(2011RC07);
青年教师启航计划资助项目;中央高校基本科研业务费专项资金资助项目(2012QNB01).
作者简介:朱传杰(1982— ),男,博士,讲师.
通讯作者:朱传杰,anq021@126.com
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