Spatial and Temporal Distribution of Temperature of Air After Methane Explosions
The spatial and temporal distribution of temperature in roadway was studied based on the relationship between overpressure and temperature which was found based on gas equation, dynamic and functional principles. The moment temperature distribution after methane explosions under different concentration of methane was got through solution to the overpressure model and connection with experiments data. Based on unsteady mass and heat transfer, and other physical phenomena, the controlling equations of mass, momentum and energy were founded. The instantaneous temperature distribution after methane explosions was used as one kind of initial conditions of RNG k-ε model to solve the spatial and temporal distribution of temperature in drivage roadway. Study on it has great meaning to understand the mechanism of sub-fire or sub-explosions induced by initial explosions. It could provide some understanding and helpful methods to prevent and control those sub-disasters.
roadway methane explosions temperature distribution
DUAN Yulong ZHOU Xinquan YU Minggao WU Caihong
National Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology National Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology Key Laboratory of Prevention and Cure of Mine Methane & Fires.Henan Polytechnic University,Jiaozuo 4
国际会议
The 2010 International Symposium on Safety Science and Technology(2010 安全科学与技术国际会议)
杭州
英文
1149-1155
2010-10-26（万方平台首次上网日期，不代表论文的发表时间）