| 动力车气动性能数值计算 |
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| 引用本文： | 张经强,梁习锋.动力车气动性能数值计算[J].数值计算与计算机应用,2003,24(2):154-160. |
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| 作者姓名： | 张经强 梁习锋 |
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| 作者单位： | 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 |
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| 摘 要： | §1.引言 列车是在地面上高速运行的长大物体,不同于汽车,更不同于航天、航空飞行器有其独特的空气动力问题需要研究解决,近年来,随着我国铁路事业的发展,列车的运行速度越来越高,随之出现的与列车空气动力性能有关的问题也越来越多,如空气阻力(当车速达到250～300km/h时,空气阻力占总阻力的75％以上)、列车交会及过隧道产生的空气压力变
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| 修稿时间： | 2001年11月5日 |
NUMERICAL CALCULATION OF AERODYNAMIC CHARACTERISTICS FOR POWER CAR |
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| Zhang Jingqiang.NUMERICAL CALCULATION OF AERODYNAMIC CHARACTERISTICS FOR POWER CAR[J].Journal on Numerical Methods and Computer Applications,2003,24(2):154-160. |
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| Authors: | Zhang Jingqiang |
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| Abstract: | In this paper , numerically simulational calculations are made on aerodynamic characteristics for power car of 200km/h EMUs, using Computational Fluid Dynamics software CFX. After calculation, surface pressure, velocity field distribution as well as aerodynamic resistance are obtained. The results of calculations are compared with those of wind tunnel test. Comparison shows good agreement. |
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| Keywords: | power car aerodynamic characteristics numerical calculation wind tunnel test |
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