Calculation method of piston air induced by train motion in subway tunnels is derived based on fluid continuity equation and Bernoulli equation.

• 以流体连续性方程及伯努利方程为理论依据,针对地铁特点,推导得出隧道内列车活塞风的计算方法,并对影响活塞效应的因素做定性分析。