风速对采空区注三相泡沫影响的Fluent模拟研究  

Numerical Simulation on Concentration Distribution of Three-phase Foam Influenced by Air Velocity Based on Fluent

作　　者：徐琴[1,2] 秦波涛[1,2] 蒋中承[1,2] 陆阳杰[1,3] 姚元领[1,2] 

机构地区：[1]煤炭资源与安全开采国家重点实验室,江苏徐州221008 [2]中国矿业大学安全工程学院,江苏徐州221008 [3]中国矿业大学矿业学院,江苏徐州221008

出　　处：《煤矿安全》2011年第1期22-25,共4页Safety in Coal Mines

基　　金：教育部新世纪优秀人才支持计划资助项目(NCET-09-0729);江苏省城市与工业安全重点实验室开放基金资助项目(2008UIS002);河南省煤矿瓦斯与火灾防治重点实验室开放基金资助项目(HKLGF200904);中国矿业大学科技基金资助项目(2007B001)

摘　　要：三相泡沫作为一种成熟的防灭火材料常用于井下火灾的防治。为了研究工作面进风巷风流速度对从地面向采空区垂直钻孔注三相泡沫的影响,运用Fluent流体力学软件对从地面向采空区垂直钻孔注三相泡沫的过程进行数值模拟。模拟结果表明,风速和三相泡沫注入速度不同的条件下,三相泡沫在采空区的扩散和堆积效果有明显的差别。在此基础上,通过观察比较三相泡沫在采空区堆积的体积分数云图,系统分析了工作面风流速度对从地面向采空区垂直钻孔注三相泡沫后泡沫在采空区扩散堆积的影响,为采空区注三相泡沫防灭火现场物理参数的确定提供了理论依据。Three phase-foam as a mature fire extinguishing material is commonly used in the mine fire control.In order to study on the concentration distribution of three-phase foam injected through ground vertical borehole influenced by working face Flow Field,numerical simulation on the process and concentration distribution of three-phase foam injected through Ground Vertical Borehole based on Fluent software was adopted in this paper.The result of numerical simulation showed that the accumulation and concentration distribution of three-phase foam in goaf were different under different conditions such as air velocity on the working face and foam injection velocity.The influence of concentration distribution of three-phase foam injected through Ground Vertical Borehole by working face flow field based on Fluent was systematically analyzed through observing and comparing the simulated maps of three-phase foam concentration distribution under different air velocity after three-phase foam into goaf.The theoretical basis for the determination of physical parameters of fire control by three-phase foam injection in goaf was provided.

关 键 词：采空区 三相泡沫 多孔介质模型 数值模拟 

分 类 号：TD752.2[矿业工程—矿井通风与安全]