Numerical research on the airflow distribution in mine tunnels

被引：0
|
作者：
Ding, Cui [1 ]
He, Xueqiu [2 ,3 ]
Nie, Baisheng [3 ]
机构：
[1] China Inst Iindustrial Relat, Dept Safety Engn, Beijing 100048, Peoples R China
[2] Univ Sci & Technol Beijing, Sch Civil & Environm Engn, Beijing 100083, Peoples R China
[3] China Univ Min & Technol Beijing, Sch Resource & Safety Engn, Beijing 100083, Peoples R China
来源：
OPERATIONAL AND ENVIRONMENTAL MINE HEALTH AND SAFETY PRACTICE AND INNOVATION | 2016年
关键词：
mine tunnel; turbulence; air flow structure; three hearts arch; average velocity;
D O I：
暂无
中图分类号：
TD [矿业工程];
学科分类号：
0819 ;
摘要：
Based on 3D modelling of typical tunnels in mines, the air flow structure in the three hearts arch-section tunnel was investigated and the influence of air velocity and cross section on air flow distribution in tunnels was studied. The average velocity points were analyzed quantitatively. The results showed that the feature of the air flow is similar with the shape of the three hearts arch-section under different ventilation velocities and cross section areas. The shape of the tunnel cross section and wall were the critical factors influencing the air flow structure. The average velocity points were mainly close to the tunnel wall. Characteristic equations were developed to describe the average velocity distribution, and provide the theoretical basis for accurately measuring the average velocity in mine tunnels.
引用
收藏
页码：595 / 599
页数：5
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