Numerical Simulation on the Gas Explosion Propagation Related to Roadway
Based on the combustion, explosions and air dynamics and related theory etc, this paper describes the mathematical model of gas explosion in detail, combined with the gas explosion transmission mechanism, make a research on two wave-three area structure of gas explosion and the energy change rule of the array face of precursor wave and the array face of flame wave, with the fluid dynamics analysis Fluent software, this paper makes a numerical simulation and analysis on the overpressure transmission rule when gas explosion takes place in different types roadways. The results of the study show that: Fluent software can be used to accurately simulate gas explosion condition, when explosion wave spreads in the roadway turns, the bigger of the overpressure value in corner, the stronger of the destructive power; when tunnel has bifurcation, the overpressure will release in bifurcation, but explosions wave with flame wave will produce more powerful destruction effect. The research results can be used as a certain reference for how to prevent and control the gas explosion, and how to reduce the power of the gas explosion etc.
Gas explosion Fluent software Roadway Numerical simulation
Yan Aihua Nie Baisheng Dai Linchao Zhang Qinqin Liu Xinna Yang Hua Liu Zhen Hu Tiezhu
Research Center of State Administration of Work Safety P.R.C, Beijing 100713,China Faculty of Resource and Safety Engineering, China University of Mining & Technology, Beijing 100083,
国际会议
The First International Symposium on Mine Safety Science and Engineering (首届矿山安全科学与工程学术会议)
北京
英文
1493-1500
2011-10-27（万方平台首次上网日期，不代表论文的发表时间）