应用辐射供暖的列车车厢气流组织研究

Study on airflow distribution in compartment with using radiant heating

列车的气流组织对室内人员的舒适性有重要影响.为了研究辐射供暖和空调送风联合作用时适宜的室内气流组织形式,以某动车车厢为研究对象,使用Airpak软件进行了数值模拟,给出了不同方案下车厢内的速度场、温度场的分布情况.研究了送风风速、辐射板温度、送风温度等对车厢气流组织的影响,并通过评价指标的对比分析,给出了适宜的辐射供暖和空调送风联合应用方案.

The air distribution of the train had an important influence on the comfort of indoor personnel. In order to research the suitable indoor air distribution form under the combined effect of radiant heating and air conditioning, this paper took a bullet train carriage as the research object, conducted the numerical simulation with Airpak software, and displayed the distribution of speed field and temperature field in the carriage under different schemes. It also researched the effects of air supply speed, radiant panel temperature and air supply temperature on the air distribution of the carriage. Through the comparative analysis of the evaluation indexes, it provided a suitable combined application scheme of radiant heating and air conditioning.