煤矿安全2012，Vol.43Issue(12)：166-169,4.
大型特厚煤层高瓦斯矿井风流非稳定流动规律研究
Study on the Non-stable Flowing Rules of Airflows in Large-scale Mines with Thick Seam and High Gas
摘要
Abstract
In this paper,Tashan Coal mine is taken as the research subject and a new ventilation method is put forward.Then,based on the non-linear computation model of air-flow,this thesis,using computation software of Comsol,will make an analysis of the flowing rules under different quantity of air intake.The result shows that when the air intake has the same quantity in two lanes,the vortex will be created in working face,with a air velocity of 9 m/s.In such case,gas accumulation will take place and flowing states of air-flow can be presented in a normal distribution.When the air intake has the different quantity in two lanes,gas accuniulation will not be produced and the air velocity reaches 4.7 m/s so that the gas can be completely diluted.And also,the flowing states are non-stable.Therefore,different quantity of air intake contributes to the gas dilution.关键词
大型高瓦斯矿/非线性计算模型/非稳定流动/数值模拟Key words
large-scale mines with high gas/non-linear computation model/non-stable flowing/numerical simulation分类
矿业与冶金引用本文复制引用
冯小静,王辉跃,田取珍,张小强..大型特厚煤层高瓦斯矿井风流非稳定流动规律研究[J].煤矿安全,2012,43(12):166-169,4.基金项目
“十二五”国家科技支撑计划资助项目 （）
高等学校博士学科点专项科研基金资助项目 （）
国家自然科学基金资助项目 （）
