• CN：11-2187/TH
• ISSN：0577-6686

• 特邀专栏：大国重器：复兴之路上的轨道交通技术 •

### 卧铺动车组客室温度场数值模拟及优化

1. 西南交通大学牵引动力国家重点实验室 成都 610031
• 收稿日期:2017-05-03 修回日期:2018-01-22 出版日期:2018-06-20 发布日期:2018-06-20
• 通讯作者: 张继业(通信作者),男,1965年出生,博士,教授,博士研究生导师。主要研究方向为列车空气动力学,稳定性理论与应用。E-mail:jyzhang@home.swjtu.edu.cn
• 作者简介:孟添,男,1992年出生。主要研究方向为列车气密性和内外流场。E-mail:autumnmt41@foxmail.com;李田,男,1984年出生,博士,助理研究员,硕士研究生导师。主要研究方向为高速列车流固耦合动力学。E-mail:litian2008@home.swjtu.edu.cn
• 基金资助:
国家自然科学基金（51605397）和国家重点研发计划课题（2016YFB1200403）资助项目。

### Numerical Simulation and Optimization for the Temperature Field of the Coach in the Sleeping EMU

MENG Tian, ZHANG Jiye, LI Tian

1. State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031
• Received:2017-05-03 Revised:2018-01-22 Online:2018-06-20 Published:2018-06-20

Abstract: In order to analyze the rationality of the temperature distribution of the coach in the sleeping electric multiple units(EMU), a numerical calculation model is established to calculate the temperature field of the coach based on CFD theory. According to the results, four optimization schemes are presented for the air inlet structure of the compartment in the air supply duct. One is to increase the air inlet area of the compartment, the second is to install a baffle at the inlet, and the third is to set a drainage channel at the inlet of drainage channel, and the last one is to combine the second one and the third one. Then the simulation analysis of each optimization scheme is carried out. The result shows that the air flow of the compartment close to the air supply duct of the original model is obviously less than that of other compartments, which leads to the higher temperature in this compartment in summer and lower temperature in winter than the others. The first scheme is not as effective as the second and the third ways in increasing the air flow of the compartment. In addition, the fourth scheme can effectively increase the air flow of the compartment and improve the uniformity of the temperature field. Through the comprehensive comparison, the fourth optimization scheme is better.