| 车身外流场数值模拟 |
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| 引用本文： | 李楚琳,李堰.车身外流场数值模拟[J].湖北汽车工业学院学报,2011,25(2):9-11,15. |
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| 作者姓名： | 李楚琳 李堰 |
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| 作者单位： | 湖北汽车工业学院 汽车工程系,湖北十堰,442002 |
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| 基金项目： | 湖北省教育厅重点科研计划项目 |
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| 摘 要： | 对某轿车车身的外流场进行了数值模拟,并分析了后风窗斜度对车身空气动力性能的影响.采用Hypermesh得到高质量的流场计算网格,运用Fluent求解计算,得到流场的CFD分析数据.利用HyperMorph实现车身网格的变形,在此基础上分析后风窗斜度对车身空气动力性能的影响.结果表明,小斜背的阻力系数较小；不是所有斜背汽...
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| 关 键 词： | 车身外流场 数值模拟 后风窗斜度 |
Numerical Simulation of Outer Flow Fields for Car Body |
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| Li Chulin,Li Yan.Numerical Simulation of Outer Flow Fields for Car Body[J].Journal of Hubei Automotive Industries Institute,2011,25(2):9-11,15. |
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| Authors: | Li Chulin Li Yan |
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| Institution: | (Dept.of Automotive Engineering,Hubei Automotive Industries Institute,Shiyan 442002,China) |
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| Abstract: | The outer flow fields of a car body are numerically simulated in Fluent and the influence of the slope of the rear windshield on aerodynamic property is analyzed.The grid of the flow field is got in HyperMesh,the simulation problem is calculated in Fluent,and the CFD data of the car is obtained.The slope of the rear windshield is changed by using HyperMorph and the influence of that on aerodynamic property is analyzed.The result shows that the cars with smaller slope of the rear windshield have smaller drag factor,and not all of cars with inclined back reaches the peak of drag factor when the slope of the rear windshield is about 30°.This study is beneficial to designing car bodies and improving the aerodynamic property of cars. |
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| Keywords: | outer flow of car body numerical simulation slope of rear windshield |
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