流体机械

2021, v.49;No.586(04) 91-96

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冬季轻轨交通列车气流组织舒适度研究
Study on air distribution comfort of light rail transit trains in winter

赵嵩颖;赵超洋;
ZHAO Songying;ZHAO Chaoyang;School of Municipal and Environmental Engineering,Jilin University of Architecture;

摘要(Abstract):

针对冬季轻轨交通列车的气流组织舒适度,以长春市轻轨交通4号线为例,通过对车厢内空气进行温湿度和风速实测,及乘客对气流组织舒适度的评价进行研究;利用计算流体力学(CFD),通过增加热空气幕的方式改善车厢内气流组织形式,以期车厢内达到更优的舒适度。研究结果表明:受站台冷空气影响,车厢内空气温度明显下降,空气湿度和风速则符合舒适度要求;地下站台进站乘客的热舒适度较高,湿感觉较差;候车时的热舒适度随候车时长的增加而降低;列车进出站会导致乘客短时间内的热舒适度略有下降;乘客着装及所处位置会影响乘车时的舒适感;在车门上方增加热空气幕并在不同时段合理调整热空气幕的风速,可以有效改善车厢内气流组织舒适度。
In view of the comfort of air distribution of light rail transit trains in winter,by taking Changchun Light Rail Transit Line 4 as an example,the air temperature,humidity and wind speed in the carriage were measured,and the evaluation of air distribution comfort by passengers was studied;the air distribution form in the carriage was improved by adding hot air curtain by using computational fluid dynamics(CFD) Comfort in a view to achieving better comfort in the carriage.The results show that,affected by the cold air of the platform,the air temperature in the carriage decreases significantly,and the air humidity and wind speed meet the comfort requirements;the thermal comfort of passengers entering the underground platform is higher,but with poor wet feeling;the thermal comfort of the passengers during the waiting decreases with the increase of waiting time;the thermal comfort of passengers entering and leaving the station will slightly decrease in a short period of time;passenger’s clothing and location will affect the comfort when staying in the train;the comfort of air distribution can be effectively improved by adding a hot air curtain above the door and adjusting the wind speed of the hot air curtain in different periods of time.

关键词(KeyWords): 轻轨交通;气流组织;舒适度;计算流体力学
light rail transit;air distribution;comfort computational;computational fluid dynamics

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基金项目(Foundation): 国家自然科学基金项目(51878316、51206061)

作者(Author): 赵嵩颖;赵超洋;
ZHAO Songying;ZHAO Chaoyang;School of Municipal and Environmental Engineering,Jilin University of Architecture;

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