| 张经强,梁习锋.高速列车外形的气动性能数值计算和头部外形的改进[J].计算力学学报,2003,20(5):631~635 |
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| 高速列车外形的气动性能数值计算和头部外形的改进 |
| Numerical calculation of aerodynamic characteristics and improvement for head shape of high speed trains |
| 修订日期：2002-02-28 |
| DOI：10.7511/jslx20035121 |
| 中文关键词: 高速列车 头部外形 气动性能 数值计算 结构改进 旅客列车 |
| 英文关键词:high speed trains,aerodynamic characteristics,numerical calculation,improvement for head shape, |
| 基金项目: |
| 张经强 梁习锋 |
| [1]北方工业大学科研处，北京100041 [2]中南大学高速列车研究中心，湖南长沙410075 |
| 摘要点击次数: 1604 |
| 全文下载次数: 16 |
| 中文摘要: |
| 运用流体力学数值计算软件CFX对我国200km／h电动旅客列车的空气动力性能进行了数值模拟计算，针对列车气动外形存在的问题，对列车头部外形进行了改进，并提出了三种列车头部外形改进方案且对其进行了数值模拟研究。计算结果表明，方案三优于其它两种方案，且较改进前列车的空气动力性能有了较大改善。 |
| 英文摘要: |
| A numerical simulation of aerodynamic characteristics of 200km/h EMUs is given, using The Computational Fluids Dynamics Software called CFX. In order to solve aerodynamic problems of the shape of the trains, three scenarios are put forward to improve the head shape through numerical calculation and analysis. The computational results shows that the third scenario is the best one, because of its aerodynamic characteristics being better than those of the unimproved model. |
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