[关键词]
[摘要]
地铁车厢幅流风机气流性能直接影响乘员的热舒适性。以搭载幅流风机B型地铁车厢乘员为研究对象,通过CFD软件STAR-CCM+,使用Stolwijk人体生理模型,以7种不同工况,分析了风机转速、扰动场函数及送风温度对车厢乘员不同部位微环境的影响,同时运用DR-Berkeley热舒适评价模型,评价车厢乘员人体热舒适性。结果表明:在7种工况中,风机转速1400rpm、扰动转速3.25rpm、送风温度20℃时的车厢内温度和速度分布均匀,乘员微环境热流场最佳,热舒适性为更好的0.766。
[Key word]
[Abstract]
The airflow performance of the amplitude flow fan in subway carriages directly affects the thermal comfort of passengers. Taking the B-type subway carriage passengers equipped with amplitude flow fans as the research object, using CFD software STAR-CCM+ and Stolwijk human physiological model, the effects of fan speed, disturbance field function, and supply air temperature on the microenvironment of different parts of the carriage passengers were analyzed through 7 different working conditions. At the same time, the DR Berkeley thermal comfort evaluation model was used to evaluate the human thermal comfort of the carriage passengers. The results showed that in 7 operating conditions, the temperature and velocity distribution inside the cabin were uniform at fan speed of 1400rpm, disturbance speed of 3.25rpm, and supply air temperature of 20 ℃. The thermal flow field in the passenger microenvironment was the best, and the thermal comfort was better at 0.766.
[中图分类号]
U461.1
[基金项目]
贵州省科技计划项目(黔科合支撑[2022]一般251)