巷道断面风流场数值模拟研究  

Numerical simulation study on airflow fieldof roadway section

作　　者：李晓 Li Xiao(Shanxi Huoerxinhe Coal Industry Co.,Ltd.,Changzhi 046000,Chima)

机构地区：[1]山西霍尔辛赫煤业有限责任公司,山西长治046000

出　　处：《煤炭与化工》2024年第11期125-132,共8页Coal and Chemical Industry

摘　　要：本文通过数值模拟探究了不同巷道断面、不同风流速度和不同风流温度巷道断面风流场的分布情况。研究发现,风流速度场在巷道中的分布不受温度的影响;不同风速对于风流温度在梯形巷道和拱形巷道中的分布都有一定的影响,即风流速度越大,同一温度风流层的厚度越小;不同巷道断面形状对风速分布影响较小,只在巷道拐角处出现较低风速区,其他区域分布趋于一致,而对于风流温度的分布基本没有影响,只是在梯形巷道上角处有一定差异,其他区域基本一致。The distribution of airflow field in different roadway sections,different airflow velocities and different airflow temperatures was explored by numerical simulation.It is found that the distribution of airflow velocity field in roadway is not affected by temperature.Different wind speeds have a certain influence on the distribution of airflow temperature in trapezoidal roadway and arched roadway,that is,the greater the airflow velocity,the smaller the thickness of the airflow layer at the same temperature;different roadway cross-section shapes have little effect on the distribution of wind speed.Only a low wind speed area appears at the corner of the roadway,and the distribution of other areas tends to be consistent.However,it has little effect on the distribution of wind flow temperature,except that there is a certain difference at the upper corner of the trapezoidal roadway,and the other areas are basically the same.

关 键 词：数值模拟 矿井通风 瓦斯防治 

分 类 号：TD712[矿业工程—矿井通风与安全]