结合上海轨交既有线路地下车站活塞风井系统的课题研究,采用了现场实测、SES和CFD等3种研究方法,探求活塞风井换气效率与风井设置、车况的内在规律。现场实测为数值模拟提供重要的边界条件和有效验证;SES作为专业的轨交环控模拟软件,方便工况设置与调节;CFD侧重于活塞风井系统三维方向上速度、压力变化研究。 Combining with the research on the piston air shaft system of the underground station in Shanghai Rail Transit, three methods, field measurement, SES and CFD, were used to explore the ventilation efficiency of the piston air shaft and the inherent law of the setting of the shaft and the condition of the vehicle. The field test provides important boundary conditions and effective verification for numerical simulation. SES is a professional simulation software for rail transit control to facilitate the setting and adjustment of working conditions. CFD focuses on velocity and pressure changes in the three-dimensional direction of the piston-air shaft system.