基于动网格的动态障碍物对巷道风流的影响  

Influence of Dynamic Obstacles on Roadway Wind Flow Based on Dynamic Grid

作　　者：张亚爽 张京兆 闫振国 黄玉鑫 崔宇鑫 张金龙 ZHANG Yashuang;ZHANG Jingzhao;YAN Zhenguo;HUANG Yuxin;CUI Yuxin;ZHANG Jinlong(College of Safety Science and Engineering,Xi'an University of Science and Technology,Xi'an,Shaanxi 710054,China)

机构地区：[1]西安科技大学安全科学与工程学院,陕西西安710054

出　　处：《矿业研究与开发》2025年第4期196-203,共8页Mining Research and Development

基　　金：国家自然科学基金资助项目(51974232)。

摘　　要：为了研究动态障碍物对矿井风速的影响,选取矿车在运输巷道行驶时的巷道进口风速、矿车行驶速度、矿车长度、阻塞比4个影响因素,运用动网格技术进行数值模拟,得到不同因素对巷道风流影响的变化规律。研究结果表明:巷道进口风速与矿车行驶速度的差值越大,巷道横截面的平均风速变化程度越明显,矿车对巷道风流的干扰距离也越长,使得矿井通风系统的稳定性受到较大影响;矿车长度和阻塞比对矿井通风系统稳定性的影响较小。运用SPSS软件中的逐步线性回归分析方法得到4个因素对巷道风速变化程度的影响由强到弱依次是矿车行驶速度、巷道进口风速、阻塞比、矿车长度。研究结果对维持矿井通风系统稳定性有着重要的意义。In order to study the influence of dynamic obstacles on mine wind speed,four influencing factors of roadway inlet wind speed,mine car driving speed,mine car length and blocking ratio were selected when the mine car was driving in the transportation roadway.The dynamic grid technology was used for numerical simulation,and the variation law of the influence of different factors on the roadway wind flow was obtained.The results show that the greater the difference between the inlet wind speed of the roadway and the driving speed of the mine car,the more obvious the average wind speed change of the cross section of the roadway,and the longer the interference distance of the mine car to thewind flow of the roadway,which greatly affects the stability of mine ventilation system.The mine car length and the blocking ratio have little effect on the stability of the mine ventilation system.Using the stepwise linear regression analysis method in SPSS software,the influence of four influencing factors on the change degree of roadway wind speed from strong to weak ismine car driving speed,roadway inlet wind speed,blocking ratio and mine car length.The research results are of great significance to maintaining the stability of mineventilation system.

关 键 词：矿井通风系统稳定性 动态障碍物 动网格 巷道风速 数值模拟 

分 类 号：TD724[矿业工程—矿井通风与安全]