| 汽车流场数值模拟 |
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| 引用本文： | 贾海庆,王成玲. 汽车流场数值模拟[J]. 汽车科技, 2007, 0(6): 18-21 |
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| 作者姓名： | 贾海庆 王成玲 |
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| 作者单位： | 1. 北京航空航天大学,国家计算流体力学实验室,北京,100083
2. 北京理工大学,电动车辆工程技术中心,北京,100081 |
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| 摘 要： | 对某项目轿车进行了数值模拟，介绍了汽车形体外流场的模拟原理和步骤，得到了整车的流场结构和尾流场的涡系结构，成功地模拟了气流分离和拖拽涡现象。在数值模拟基础上，对流场气流的横纵向流动状况、尾部涡系结构．气流分离机理以及拖拽涡的形成与发展机理作了详细分析与讨论。
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| 关 键 词： | 数值模拟 尾流结构 拖拽涡 汽车 |
| 文章编号： | 1005-2550(2007)06-0018-04 |
| 修稿时间： | 2007-05-15 |
Numerical Simulation Research of Automotive Flow-field |
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| JIA Hai-qing,WANG Cheng-ling. Numerical Simulation Research of Automotive Flow-field[J]. Automobile Science and Technology, 2007, 0(6): 18-21 |
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| Authors: | JIA Hai-qing WANG Cheng-ling |
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| Abstract: | In this paper, numerical simulation of a car was done, the principle and process of the simulation of the flow-field around the car were introduced,the structure of whole outer flow-field and trailing vortices were presented. The appearance of flow separation and towing vortices was simulated successfully. Based on the numerical simulation,vertical and horizontal flowing state of the flow in the flow-field,wake vortices structure,the mechanism of flow separation and the formation and development of trailing vortices were discussed in detail. |
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| Keywords: | numerical simulation structure of wake trailing vortices |
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