矿井瓦斯源定位的气体扩散数值模拟  

Numerical Simulation of Gas Diffusion for Coalmine Gas Source Location

作　　者：卜淑萍 金鑫 李晓东 周笛 

机构地区：[1]中国矿业大学信息与控制工程学院,江苏徐州221116

出　　处：《煤炭技术》2017年第12期146-148,共3页Coal Technology

基　　金：江苏省普通高校专业学位研究生创新计划项目(SJLX16_0628)

摘　　要：瓦斯泄漏是影响煤矿产业生产安全的重要因素,已有的能够用于矿井瓦斯源定位的气体烟羽模型大多建立在理想的仿真环境之上,对瓦斯源定位的应用不具有实际的指导意义。针对上述问题,建立了基于计算流体动力学(CFD)软件包FLUENT的动态烟羽模型,并进行了数值模拟。在建立烟羽模型的过程中,主要考虑了障碍物和变风速的影响因素,讨论了不同风速下动态烟羽模型所具有的特征,研究了障碍物对浓度分布的影响。Gas leakage is an important factor affecting the safety of coal mine production. The existing plume model that can be used for coalmine gas source location are mostly built on the ideal simulation environment, which has no practical significance for the application of gas source location. Aiming at the above problem, a dynamic plume model based on computational fluid dynamics （CFD） software package FLUENT is established and performs the numerical simulation. In the process of establishing the model, the obstacles and variable wind speed are mainly considered. The characteristics of the dynamic plume model under different wind speeds are discussed, and the influence of the obstacle on the concentration distribution is studied.

关 键 词：瓦斯泄漏 FLUENT 动态烟羽模型 障碍物 变风速 

分 类 号：TD712[矿业工程—矿井通风与安全]