[1]刘静平①②,赵金刚①,潘峰①②,等.硬脂酸粉尘爆炸过程中火焰传播试验及数值模拟[J].爆破器材,2016,45(05):11-16.[doi:10.3969/j.issn.1001-8352.2016.05.003]
　LIU Jingping,ZHAO Jingang,PAN Feng,et al.Experiment and Numerical Simulation on Flame Propagation in Stearic Acid Dust Explosion[J].EXPLOSIVE MATERIALS,2016,45(05):11-16.[doi:10.3969/j.issn.1001-8352.2016.05.003]
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硬脂酸粉尘爆炸过程中火焰传播试验及数值模拟()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
45
期数:
2016年05
页码:
11-16
栏目:
基础理论
出版日期:
2016-09-30

文章信息/Info

Title:
Experiment and Numerical Simulation on Flame Propagation in Stearic Acid Dust Explosion
文章编号:
5081
作者:
刘静平①②; 赵金刚①; 潘峰①②; 秋珊珊①②
①南京理工大学化工学院（江苏南京，210094）
②国家民用爆破器材质量监督检验中心（江苏南京，210094）
Author(s):
LIU Jingping①②;  ZHAO Jingang①;  PAN Feng①②;  QIU Shanshan①②
①School of Chemical Engineering, Nanjing University of Science and Technology (Jiangsu Nanjing, 210094)
②National Quality Supervision and Inspection Center for Industrial Explosive Materials (Jiangsu Nanjing, 210094)
关键词:
硬脂酸粉尘爆炸; 火焰传播; 火焰温度; 数值模拟; 气流速度
Keywords:
stearic acid dust explosion;  flame propagation;  flame temperature;  numerical simulation;  flow velocity
分类号:
X932；O381
DOI:
10.3969/j.issn.1001-8352.2016.05.003
文献标志码:
A
摘要:
采用试验和数值模拟相结合的方法研究了硬脂酸粉尘火焰在上端开口的圆柱形垂直燃烧管道的传播过程。试验利用高速摄影系统和红外热成像仪记录了火焰的传播过程和温度分布情况，结果表明：火焰传播速度和火焰温度均呈现先增大后减小的趋势。采用Fluent软件计算得到的模拟结果与试验值吻合较好，模拟结果揭示了硬脂酸粉尘爆炸过程中气流速度的变化情况，分析结果表明： 在同一时刻，气流速度高于粉尘火焰传播速度，是造成粉尘二次扬尘，进而产生持续爆炸的重要因素之一。
Abstract:
Flame propagation behavior of stearic acid dust explosion in semi-enclosed vertical combustion tube was studied by experiment and numerical simulation. The results were recorded by a high speed video camera and a thermal infrared imaging device, from which it is observed that the flame propagation velocity and flame temperature both increased at first and then decreased. Simulation results obtained by Fluent software show a good agreement with test results. Simulation results also indicate that flow velocity is higher than flame propagation velocity during the combustion process, which is the main reason for secondary dust formation and successive explosion.

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备注/Memo

备注/Memo:
收稿日期：2016-04-06
基金项目：国家自然科学基金项目（51472119）；江苏高校优势学科建设工程二期项目［苏政办发（2004）37号］
作者简介：刘静平（1974－），女，博士研究生，工程师，主要从事工业炸药的分析以及粉尘爆炸等方面的研究。E-mail:liu-jingping@163.com
通信作者：秋珊珊（1981－），女，博士，工程师，主要从事粉尘爆炸以及危险化学品分类方面的研究。E-mail:ppshanshanqiu@126.com
更新日期/Last Update: 2016-09-30