基于FLUENT的地铁屏蔽门通风数值模拟研究

Research on numerical simulation of the ventilation for metro platform screen door based on Fluent

为研究地铁屏蔽门系统通风变化,搭建了一个列车在站内停车、屏蔽门开启且后方列车行驶的仿真模型,通过FLUENT进行数值模拟。提取了仿真过程中站台各个屏蔽门处的气流速度,计算出相应的通风量。研究了同一站台各个屏蔽门通风量变化。研究结果表明,各屏蔽门通风量变化总体呈现先下降再上升最后趋于稳定的趋势,为地铁环控系统节能优化提供了理论参考。

A Fluentsimulation model was builtto study the ventilation changes of the subway screen door system.This model simulates the working conditions of subway parking in the station,the opening of the screen door,and the subway driving behind.In the simulation process,the speed of each screen door of the platform is extracted.The corresponding ventilation volume is calculated.The changes in the ventilation volume of each screen door on the same platform are studied.The results show thatthe overall change of the ventilation volume of each screen door shows a trend of first decreasing,then increasing,and finally tending to be stable,which provides a theoretical reference for the energy-saving optimization of the subway environmental control system.