置障条件下的矿井瓦斯爆炸传播过程数值模拟研究  

Numerical simulation of the barricade encouraging effect in the process of gas explosion propagation

作　　者：徐景德[1] 杨庚宇[1] 

机构地区：[1]华北科技学院培训处

出　　处：《煤炭学报》2004年第1期53-56,共4页Journal of China Coal Society

基　　金：国家"973"重点研究资助项目(200CB4002007);国家自然科学基金资助项目(59874030)

摘　　要：对瓦斯爆炸传播过程中障碍物激励效应的物理机制进行了分析,并构建了相应的物理模型.在3种情况下对冲击波经过障碍物附近时的变化特征进行了数值模拟.结果表明,非燃烧区的障碍物同样存在激励效应,激励效应取决于瓦斯爆炸冲击波的初始强度,即爆轰状态激励效应最为强烈.The physics mechanism of the barricade's encourage effect in the gas explosion propagation was analyzed, and the homologous physics model was set up. The numerical simulation was taken for changing characteristic when explosion wave was passing the barricade nearby in three kinds of case. The conclusion showed that the barricades encourage effect exist in burning area and unburning area. The encourage effect was decided by the initial strength of explosion wave, which was the most strong in the case of detonation.

关 键 词：瓦斯爆炸 冲击波 激励效应 数值模拟 

分 类 号：TD712.7[矿业工程—矿井通风与安全]