• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2018, Vol. 54 ›› Issue (12): 17-22.doi: 10.3901/JME.2018.12.017

• 特邀专栏:大国重器:复兴之路上的轨道交通技术 • 上一篇    下一篇

卧铺动车组客室温度场数值模拟及优化

孟添, 张继业, 李田   

  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

摘要: 为分析卧铺动车组客室温度分布的合理性,基于计算流体力学理论,建立卧铺动车组客室温度场数值模拟计算模型,分析了客室温度场分布特性。根据仿真计算结果,对送风道内的包厢进风口结构提出四种优化方案,即增加包厢进风口面积、包厢进风口处增设挡板、进风口处增设引流道以及增设挡板和引流道结合方案,然后对每一种优化方案进行仿真计算分析。结果表明:原始卧铺动车组紧邻送风道入口的包厢空气流量明显比远离送风道入口的包厢少,导致此包厢夏季温度较高,冬季温度较低;增加送风口面积方案不如增设挡板方案和增加引流道方案对增加包厢的空气流量有效;增设挡板和增设引流道结合的方案可以有效的增加包厢的空气流量,改善客室温度场的均匀性;增设挡板和引流道结合方案优化效果最佳。

关键词: 数值模拟, 温度场, 卧铺动车组, 优化

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.

Key words: numerical simulation, optimization, sleeping electric multiple units(EMU), temperature field

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