Coupling Effects of Foam Ceramics on the Flame and Shock Wave of Gas Explosion
The coupling of gas explosion flame and shock wave is analyzed. In the gas explosion process, shock wave is affected by the flame directly, and shock wave also induces the flame. Inhibiting explosion can be achieved by the interference between the flame and shock wave propagation. If the coupling effects can be damaged, the adverse effects caused by the explosion should be mitigated and controlled. According to the structure characteristics of foam ceramics, the coupling effects mechanism of ceramic foam on gas explosion flame and shock wave is researched. When the explosion goes through the structure of foam ceramics, the flame can be quenched and the shock wave be attenuated. After the flame is quenched, the supply of precursor shock wave energy is cut off. Due to lack of energy supply, the destructive effects of blast wave will be reduced effectively. Coupling effects of the flame and shock wave can be damaged by the special structure of foam ceramics. Studies suggest that a certain function to represent the structure characteristics of foam ceramics must exist. For a certain material of foam ceramics, the sure porosity 8 and the pore diameter d also can be get, which is the key to research and develop foam ceramic suppression technology of gas explosion.
Foam ceramics Gas explosion Flame Shock wave Coupling effects
Jinfeng Zhang Zhongqiang Sun Yanmin Zheng Zhaogui Su
Environmental science and techonlogy, Hebei University of Science andTechnology, Shijiazhuang 050018, China
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
1112-1117
2011-10-27（万方平台首次上网日期，不代表论文的发表时间）