| 瓦斯爆炸冲击波在单向转弯巷道内传播及衰减数值模拟 |
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| 引用本文： | 侯玮,曲志明,骈龙江. 瓦斯爆炸冲击波在单向转弯巷道内传播及衰减数值模拟[J]. 煤炭学报, 2009, 34(4) |
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| 作者姓名： | 侯玮 曲志明 骈龙江 |
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| 作者单位： | 侯玮,HOU Wei(北京科技大学,土木与环境工程学院,北京,100083;河北工程大学,河北,邯郸,056038);曲志明,骈龙江,QU Zhi-ming,PIAN Long-jiang(河北工程大学,河北,邯郸,056038) |
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| 摘 要： | 在应用一些基本假设的基础上,建立了瓦斯爆炸冲击波在转弯巷道内传播的物理模型和数值模型.数值模拟的结果表明,转弯巷道内传播的冲击波,其压力、速度和温度等参数在传播过程中存在着衰减态势.在瓦斯爆炸初期,由于化学反应的存在而使冲击波波阵面上的参数不断增加;而在全部瓦斯混合气体反应结束后,压力、速度和温度的衰减较慢.通过实验数据、模拟数据和实测数据的对比表明数据的吻合程度较高,证明了数值模型的可行性.
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| 关 键 词： | 瓦斯爆炸 冲击波 单向转弯巷道 传播 衰减 数值模拟 |
Numerical simulation on propagation and attenuation of shock waves in simplex turn roadway during gas explosion |
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| HOU Wei,,QU Zhi-ming,PIAN Long-jiang. Numerical simulation on propagation and attenuation of shock waves in simplex turn roadway during gas explosion[J]. Journal of China Coal Society, 2009, 34(4) |
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| Authors: | HOU Wei QU Zhi-ming PIAN Long-jiang |
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| Affiliation: | 1.School of Civil Engineering and Environment;University of Science and Technology Beijing;Beijing 100083;China;2.Hebei University of Engineering;Handan 056038;China |
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| Abstract: | On the basis of some hypothesis,the physical and mathematical model of shock waves propagation were set up in turn roadway.The results of numerical simulation show that the pressure,velocity and temperature of shock wave will be attenuated during propagation.At the beginning of gas explosion,the quantity of parameters of shock wave front is increased gradually because of methane reaction.However,the pressure,velocity and temperature will be attenuated to a small extent after the end of the chemical reaction... |
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| Keywords: | gas explosion shock wave simplex turn roadway propagation attenuation numerical simulation |
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