中北大学学报（自然科学版）Issue(2)：208-213,218,7.DOI:10.3969/j.issn.1673-3193.2015.02.023
瓦斯与煤尘混合物爆炸特性数值模拟仿真
Numerical Simulation of Gas and Coal Dust Explosive Characteristics
摘要
Abstract
The Fluent software was used to make numerical simulations to the explosion process of the mixture of gas and coal dust and analyze the explosion overpressure and flame temperature during the explosion process. It turns out that in the initial explosion flame temperature rise rate reaches 3 000 K/ms within the 3 ms and the highest temperature of flame reaches 3 400 K.The maximum explo-sion overpressure of gas-coal dust compound decreases as the particle size of coal dust increase.When the gas concentration is 5% and the coal dust concentration is 390 g/m3 ,the gas-coal dust compound ex-plosion overpressure value is the highest.The simulation results of the simulation system provide basis data and references for the prevention of mine gas and gas-coal dust explosion.关键词
瓦斯煤尘/粒径/最大爆炸超压/数值仿真Key words
gas and coal dust/particle size/maximum explosion pressure/numerical simulation分类
资源环境引用本文复制引用
魏嘉,闻利群..瓦斯与煤尘混合物爆炸特性数值模拟仿真[J].中北大学学报（自然科学版）,2015,(2):208-213,218,7.基金项目
山西省高等学校科技创新项目 （）
