| 基于不同外形参数模型的汽车外流场仿真 |
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| 引用本文： | 杜子学,张杰.基于不同外形参数模型的汽车外流场仿真[J].重庆交通大学学报(自然科学版),2011,30(4):848-851. |
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| 作者姓名： | 杜子学 张杰 |
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| 作者单位： | 重庆交通大学机电与汽车工程学院,重庆,400074 |
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| 摘 要： | 运用三维建模软件建立某型汽车的CAD模型,并基于知识工程模块设置一组影响汽车空气动力学的参数:前风窗角(FWW)、后风窗角(BWW)、接近角(AFA)、离去角(DRA),通过改变这些参数得到8种不同的汽车模型；将得到的参数化模型运用计算流体力学(CFD)软件Star - ccm+对其进行空气动力学模拟分析,模拟出不同参...
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| 关 键 词： | 汽车空气动力学 外流场 参数化模型 数值模拟 |
Simulation for External Flow Field around Automobiles Based on Models of Different Parametric Shape |
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| DU Zi-xue,ZHANG Jie.Simulation for External Flow Field around Automobiles Based on Models of Different Parametric Shape[J].Journal of Chongqing Jiaotong University,2011,30(4):848-851. |
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| Authors: | DU Zi-xue ZHANG Jie |
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| Institution: | (School of Electromechanical & Automotive Engineering,Chongqing Jiaotong University,Chongqing 400074,China) |
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| Abstract: | The CAD model of a certain type automobile was created with three-dimensional modeling software.Based on knowledge engineering module,a set of aerodynamic parameters of vehicles was set up.These parameters were angle of front windscreens(FWW),angle of rear windscreens(BWW),approach angle(AFA),departure angle(DRA).Eight different car models were obtained by changing these parameters.Then parametric model will be analyzed for aerodynamic by using of computational fluid dynamics(CFD) software,Star-ccm+.Under different parametric models,the drag coefficient and lift coefficient could be simulated.Moreover,analysis of affection for aerodynamic performance could also be carried on. |
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| Keywords: | automobile aerodynamics external flow field parametric model numerical simulation |
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