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| 变道超车过程的车辆气动特性仿真研究 | |
| 引用本文： | 张苗,范秦寅,胡广洪,胡兴军,张宝亮,苏舒.变道超车过程的车辆气动特性仿真研究[J].拖拉机与农用运输车,2011,38(4). |
| 作者姓名： | 张苗 范秦寅 胡广洪 胡兴军 张宝亮 苏舒 |
| 作者单位： | 1. 上海交通大学模具CAD国家工程研究中心,上海,200030 2. 日本CRADLE软件公司,日本大阪 3. 吉林大学汽车动态模拟国家重点实验室,长春,130022 |
| 摘 要： | 基于Ahmed模型,采用重叠网格和不连续网格两种方法对直道超车过程的外部流场进行了数值仿真。通过比较仿真结果,验证了重叠网格应用于超车过程外部流场数值仿真上的适用性和准确性,并进一步应用重叠网格方法实现了变道超车过程的外部流场数值仿真,揭示了在变道超车过程中,两车外部流场相互干扰的流动特性。通过以上计算,指出了重叠网格在解决诸如变道超车等问题的潜力,为解决实际车型的变道超车等问题提出了简便实用的方法,具有一定的指导意义。 |
| 关 键 词： | 汽车空气动力学 不连续网格 重叠网格 直道超车 变道超车 |
Simulation Research on Automotive Aerodynamic Characteristics During Overtaking by Switching Lines Process |
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| ZHANG Miao,FAN Qin-yin,HU Guang-hong,HU Xing-jun,ZHANG Bao-liang,SU shu.Simulation Research on Automotive Aerodynamic Characteristics During Overtaking by Switching Lines Process[J].Tractor & Farm Transporter,2011,38(4). | |
| Authors: | ZHANG Miao FAN Qin-yin HU Guang-hong HU Xing-jun ZHANG Bao-liang SU shu |
| Institution: | ZHANG Miao1,FAN Qin-yin2,HU Guang-hong1,HU Xing-jun3,ZHANG Bao-liang1,SU shu1(1.National Die and Mold CAD Engineering Research Center,Shanghai Jiaotong University,Shanghai 200030,China,2.Software Cradle Co.,Ltd.,Osaka,Japan,3.State Key Laboratory of Automobile Dynamic Simulation,Jilin University,Changchun 130022,China) |
| Abstract: | The automotive external flow field during the overtaking in line process is simulated between the discontinuous mesh and overset mesh method based on Ahmed model.The applicability and accuracy of overset mesh method in simulating the automotive external flow field are proved by comparing the simulation results.Then the overset mesh method is adopted further to realize the external flow field simulation during the overtaking by switching lines process and to reveal the interfere characteristics of external flow field of the two vehicles.These calculations show the potential of overset mesh method to solve the problems such as overtaking by switching lines,and which can provide a way for solving such problems of the actual vehicles. |
| Keywords: | Automotive aerodynamics Discontinuous mesh Overset mesh Overtaking in line Overtaking by switching lines |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |