高压物理学报2024，Vol.38Issue(2)：147-159,13.DOI:10.11858/gywlxb.20230760
H型巷道内采用不同布置方式的双爆源瓦斯爆炸传播特性
Propagation Characteristics of Dual Explosive Sources Gas Explosion in Different Arrangements in H-Type Tunnel
摘要
Abstract
In order to investigate the propagation characteristics and thermal shock dynamics of multiple explosive sources gas explosion in complex roadways,numerical simulations were conducted using the Fluent software under three types of dual explosive sources arrangements in the H-type tunnel,including the same side,opposite positions,and diagonal positions.It was found that,after the two explosive sources in the tunnel were ignited simultaneously,its prodromic shock wave propagated along the unburned area of the tunnel.When the two shock waves encountered,the pressure superimposed while the impulse canceled out,and the propagation of flame was blocked by the pressure superposition area,resulting in a slowdown or reversal of the speed.Compared to the single source explosion,the dual explosive sources led to a higher pressure in specific areas such as contact lane,center of bifurcation,and sidewalls.Extreme pressure zones occur at the closed end of the roadway under same-side and diagonal arrangement conditions and at the center of the bifurcation under the opposite arrangement condition.关键词
瓦斯爆炸/H型巷道/布置方式/冲击波/传播特性Key words
gas explosion/H-type tunnel/arrangement/shock wave/propagation characteristics分类
数理科学引用本文复制引用
叶青,王维建,贾真真,刘佳林..H型巷道内采用不同布置方式的双爆源瓦斯爆炸传播特性[J].高压物理学报,2024,38(2):147-159,13.基金项目
国家自然科学基金(52174177,52174178) （52174177,52174178）
