| 不同环境温度下瓦斯爆炸特性的数值模拟研究 |
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| 引用本文： | 黄子超,司荣军,李润之.不同环境温度下瓦斯爆炸特性的数值模拟研究[J].矿业安全与环保,2012(5):29-31,35,99. |
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| 作者姓名： | 黄子超 司荣军 李润之 |
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| 作者单位： | 瓦斯灾害监控与应急技术国家重点实验室;中煤科工集团重庆研究院火灾爆炸防治研究分院 |
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| 摘 要： | 运用计算流体力学分别对常温、高温条件下的瓦斯爆炸过程进行了数值模拟研究,模拟结果清晰地反映了爆炸后不同时刻流场中爆炸压力、火焰温度、各组分浓度等参数的分布特征。研究发现,随着环境温度的升高,化学反应速率加快,爆炸后火焰温度的升高主要是由于初始气体温度升高带来的热量。
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| 关 键 词： | 环境温度 爆炸特性 甲烷 数值模拟 |
Numerical Simulation Study on Gas Explosion Characteristics at Different Ambient Temperatures |
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| Abstract: | Numerical simulations of gas explosion processes were carried out under the conditions of normal temperature and high temperature by using CFD software.The simulation results clearly reflected the distribution of the explosion pressure,flame temperature and each component concentration in the flow field at different time after the explosion.The study found that the chemical reaction rate became faster with the increase of the ambient temperature,and the rise of the flame temperature after explosion was mainly due to the increase of the initial gas temperature. |
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