| 轿车外流场数值模拟 |
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| 引用本文： | 严鹏,吴光强,傅立敏,胡兴军. 轿车外流场数值模拟[J]. 同济大学学报(自然科学版), 2003, 31(9): 1082-1086 |
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| 作者姓名： | 严鹏 吴光强 傅立敏 胡兴军 |
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| 作者单位： | 1. 同济大学,汽车学院,上海,200092
2. 吉林大学,汽车学院,吉林,长春,130024 |
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| 摘 要： | 应用计算流体力学(CFD)方法计算模拟轿车三维外流场,得出模拟计算结果。分析了影响模拟计算精度的原因,在此基础上应用优化网格和不同的湍流模型及差分格式,比较了计算结果并与风洞试验结果相验证。提出针对具体模拟对象,选择适当的模拟方法,以提高计算精度。
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| 关 键 词： | 汽车空气动力学 数值模拟 湍流模型 差分格式 |
| 文章编号： | 0253-374X(2003)09-1082-05 |
| 修稿时间： | 2002-09-26 |
Numerical Simulation of Flow Field around Car |
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| YAN Peng,WU Guang-qiang,FU Li-min,HU Xin-jun. Numerical Simulation of Flow Field around Car[J]. Journal of Tongji University(Natural Science), 2003, 31(9): 1082-1086 |
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| Authors: | YAN Peng WU Guang-qiang FU Li-min HU Xin-jun |
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| Abstract: | The flow field around a car is simulated with the method of computational fluid dynamics(CFD) in this paper. Some aerodynamic parameters are obtained. Causes of accuracy of simulation result are analyzed. On the basis of analysis, the flow field is simulated with different turbulent models and differencing schemes on refined grid, and the result is compared with that of wind tunnel test. Thus a concept that an appropriate strategy should be applied to a special numerical simulation case to obtain most accurate result is proposed. |
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| Keywords: | aerodynamics numerical simulation turbulence model differencing scheme |
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