技术中心

【英文篇名】 Numerical and experimental study on airflow and temperature field in air conditioned trains 【作者中文名】 邓建强; 冯诗愚; 张早校; 郁永章; 靳谊勇; 【作者英文名】 By Deng Jianqiang; Feng Shiyu; Zhang Zaoxiao; Yu Yongzhang and Jin Yiyong Tsinghua University; Beijing; China; 【作者单位】 清华大学; 西安交通大学; 青岛四方车辆研究所; 【文献出处】 暖通空调, Hv 气流组织; 数值模拟; 【英文关键词】 temperature field; air distribution; numerical simulation; 【摘要】 采用Kε湍流模型对空调客车内三维空气流场和温度场进行了数值模拟,并进行了相应的实验研究。研究结果表明,车厢内下部乘客区空气温度高于上部区域,对热舒适性不利;上部区域存在新风短路现象,建议采用下送风方式。 【英文摘要】 Numerically simulates the 3-D airflow and temperature field using K-ε turbulent model and takes a corresponding experiment. The results indicate that the temperature in occupied zone is higher than that of upper zone,which hurts passenger’s thermal comfort. It also detects that fresh air will be short circuited in upper zone. It is a better choice to supply air from a lower level.