何锋　刁雷　韦武　赵京

摘   要：为研究幅流风机在地铁列车中对乘员人体热舒适影响. 以应用新型幅流风机B型地铁车厢乘员为研究对象. 采用数值模拟加载Stolwijk人体生理温度调节模型结合气流不舒适指标、Berkeley热舒适评价模型对车厢乘员人体热舒适进行研究. 通过实验验证仿真模型准确性，分析了车厢空调送风温度为20 ℃时，加载幅流风机对乘员人体微环境和各指标的影响. 并对比分析了不同频率扰动场函数工况乘员各指標差异. 研究结果表明：幅流风机可提高车厢流场流速和均匀度，改善车厢内气流组织，优化人体微环境热流场. 加载幅流风机后，乘员整体热感觉降低了7.3%、热舒适升高了0.76%. 一定范围内，随着扰动频率的升高人体热舒适下降，最优扰动场函数频率为2.75次/min.

关键词：幅流风机;热舒适性;地铁车辆;车厢热流场

中图分类号：U461.1                       文献标志码：A

Thermal Comfort Analysis of Subway Train

Occupants Based on Disturbance-flow Fan

HE Feng1，DIAO Lei1，WEI Wu1，ZHAO Jing2

（1. Guizhou University，College of Mechanical Engineering，Guiyang 550025，China;

2. Guizhou Hanghang Technology Co.，Ltd.，Guiyang 550025，China）

Abstract： To study the influence of the disturbance-flow fan on the passengers' thermal comfort on the subway train， the new disturbance-flow fan type B subway car occupants was taken as the research object. The human body's physiological temperature regulation model with numerical simulation loading Stolwijk was used to study the cabin crew's human thermal comfort by combining the airflow discomfort index and Berkeley thermal comfort evaluation model. Experiments verified the accuracy of the simulation model. The influence of the loading disturbance-flow fan on the human body microenvironment and various indexes were analyzed when the air supply temperature of the air conditioner in the compartment was 20 ℃. The difference of occupant index in different frequency perturbation field was analyzed. The results show that the disturbance-flow fan can improve the flow velocity and uniformity and the air distribution in the compartment， and it can optimize the human microenvironment's heat flow field. After loading the disturbance-flow fan， the occupant's overall thermal sensation is decreased by 7.3%， and the thermal comfort is increased by 0.76%. Within a certain range， the human body's thermal comfort decreases as the disturbance frequency increases， and the optimal disturbance field function frequency is 2.75 times /min.

Key words：disturbance-flow fan;thermal comfort;railroad rolling stock;heat flow field of carriage

地铁列车乘员上下车频繁，内部环境复杂多变，车厢内部热环境不稳定且受空调送风及外部环境影响，使得车厢内乘员热感觉及热舒适发生改变. 康伟和李俊[1-2]研究发现风速动态化有利于改善热环境及节能. Mayer E[3]指出气体强度与对流换热系数关系. 由于气体脉流强度改变，皮肤温度产生脉动，冷感受器传输到大脑，产生吹风感[4]. 孙淑凤等人[5]对出风风速进行频谱分析 ，动态风的频谱与自然风的频谱非常相似.

幅流风机是一种产生周期扰动气流的送风系统设备. 近年来，随着国产幅流风机的自……