摘要
以重庆跨坐式单轨列车单节车辆为研究对象,将乘客作为热源,考虑太阳辐射对车室内气体流动的影响建立了物理模型。利用CFD软件对车辆客室内速度场和温度场进行了数值模拟计算,并采用热舒适性评价体系PMV-PPD(预期平均通感-不舒适人员比例)对仿真结果进行了分析评价。研究结果表明,整个车辆客室内的流场及温度场沿车厢长度方向具有良好的对称性,有不超过20%的乘客有微凉的感觉。
To meet the thermal comfort requirements of passenger＇s compartment, a study of the air-conditioned trains and the indoor air temperature distribution is essen- tial. Taking Chongqing monorail train car as the research object, this paper establishes a physical model in considering the heat of passengers and the solar radiation on the vehi- cle,and uses commercial CFD software to simulate the ve- locity and temperature inside the compartment, and inter- nationally popular PMV-PPD rating system for the evalua- tion of the result, which shows that：the whole flow field in- side the compartment and the temperature along the length direction are of good symmetry, only less than 20% of passergers feel a little bit cool .
出处
《城市轨道交通研究》
北大核心
2011年第7期36-41,共6页
Urban Mass Transit
