Numerical simulation of airflow distribution in mine tunnels

作者：Ding Cui^*; He Xueqiu; Nie Baisheng

来源：International Journal of Mining Science and Technology, 2017, 27(4): 663-667.

DOI：10.1016/j.ijmst.2017.05.017

• Mine tunnel
• Turbulence
• Airflow distribution
• Three-center arch
• Average velocity

Based on 3D modelling of typical tunnels in mines, the airflow distribution in a three-center arch-section tunnel is investigated and the influence of air velocity and cross section on airflow distribution in tunnels is studied. The average velocity points were analyzed quantitatively. The results show that the airflow pattern is similar for the three-center arch section under different ventilation velocities and cross sectional areas. The shape of the tunnel cross section and wall are the critical factors influencing the airflow pattern. The average velocity points are mainly close to the tunnel wall. Characteristic equations are developed to describe the average velocity distribution, and provide a theoretical basis for accurately measuring the average velocity in mine tunnels.

• 出版日期2017-7
• 单位中国矿业大学（北京）; 北京科技大学