Not only is the thermal environment of the coal mining face related to the temperature of the surrounding rock, it is also closely associated with the ventilation model of the working face. In this study, the numerical methods were applied to study the impact of two major ventilation systems on the airflow temperature of working face in coalmine. Firstly, a heat transfer model of the surrounding rock and airflow was established to reveal that the wall roughness of the surrounding rock could enhance heat transfer between the surrounding rock and the airflow. Moreover, an analysis was conducted of the heat transfer between the airflow and the surrounding rock under different modes of ventilation in the first mining face. According to the analytical results, the temperature of airflow in the U-type ventilation system is lower than in the Y-type ventilation system. For the next adjacent coal mining face, however, the Y-type ventilation system is more conducive in reducing the temperature of the airflow. Therefore, with regard to the mine as a whole, the Y-type ventilation system is more effective than a U-type system in reducing heat and humidity in the ambient environment.

采煤工作面的热环境不仅与周围岩石的温度有关，而且还与工作面的通风模型密切相关。本文采用数值方法研究了两种主要通风系统对煤矿工作面气流温度的影响。首先，建立了围岩与气流的传热模型，揭示了围岩的壁面粗糙度可以增强围岩与气流之间的传热。此外，分析了在第一采煤工作面中不同通风方式下气流与围岩之间的热传递。根据分析结果，U型通风系统的气流温度低于Y型通风系统。但是，对于下一个相邻的采煤工作面，Y型通风系统更有利于降低气流温度。因此，就矿山整体而言，Y型通风系统在降低周围环境的热量和湿度方面比U型系统更有效。