论文部分内容阅读
本文利用日本有关的研究和实验结果，用计算方法求得我国大型车和小型车的正面投影面积人，可据以计算两者的阻力系数及相应的交通换气力。交通换气力对隧道通风的影响是不容忽视的。在采用纵流换气方式的单向交通隧道中，可将交通换气力全部利用，而在纵流换气的双向交通隧道中，交通换气力只能视为较大的阻力。
This paper uses the relevant research and experimental results from Japan to calculate the frontal projection area of China’s large and small vehicles by calculation methods. Based on this, it can calculate the drag coefficient and corresponding ventilation capacity of the two vehicles. The effect of traffic ventilation on tunnel ventilation cannot be ignored. In a one-way traffic tunnel adopting the longitudinal flow ventilation method, the traffic ventilation force can be fully utilized, and in the two-way traffic tunnel with longitudinal flow ventilation, the traffic ventilation force can only be regarded as a greater resistance.