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超车过程的车辆气动特性仿真研究 被引量:15

Simulation Research on Automotive Aerodynamic Characteristics during the Overtaking Process
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摘要 采用计算流体力学(CFD)方法,对两辆车超车过程的外部流场进行了数值仿真,以研究超车过程中车辆的空气动力特性。采用有限递增步法来处理超车过程,实现了车辆超车过程的三维流场数值仿真,揭示了两车外部流场相互干扰的流动特性,在以前研究超车过程中横向间距对车辆气动特性影响的基础上,进一步研究了两车纵向相对位置对车辆气动特性的影响规律以及气动力对汽车行驶稳定性的影响,为汽车自动驾驶系统和智能交通系统(ITS)的研究提供了理论依据。 In order to research the automotive aerodynamic characteristics during the overtaking process, Computational Fluid Dynamics (CFD) method was adopted to simulate the external flow field during the overtaking process. "Finite incremental steps" method was adopted to treat the overtaking process, to realize the three-dimensional flow field numerical simulation of vehicle overtaking process and to reveal the interfere characteristics of external flow field of two vehicles. On the basis of the effect of lateral spacing during the overtaking process on the automotive aerodynamic characteristics researched before, the effect of longitudinal relative positions on the vehicle aerodynamic characteristics during the overtaking process and the effect of aerodynamic forces on the driving stability were discussed further, which can provide theory basis for the research on automatic drive system and intelligent traffic system (ITS),so as to ensure safety overtaking.
机构地区 吉林大学
出处 《中国机械工程》 EI CAS CSCD 北大核心 2007年第5期621-625,共5页 China Mechanical Engineering
基金 国家自然科学基金资助项目(60222207) "吉林大学‘985工程’项目"资助
关键词 汽车空气动力学 数值仿真 超车 气动特性 automotive aerodynamics numerical simulation overtaking aerodynamic characteristics
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  • 1Okumura K, Kuriyama T. Transient Aerodynamic Simulation in Crosswind and Passing an Automobile[C]// Society of Automotive Engineers. International Congress & Exposition. Topics in Vehicle Aerodynamics. Detroit: SAE, 1997:141-156. 被引量:1
  • 2Azim A F, Gawad A F. A Flow Visualization Study of the Aerodynamics Interference Between Passenger Cars[C]// Society of Automotive Engineers.SAE 2000 World Congress. Vehicle Aerodynamics.Detroit:SAE, 2000:1-12. 被引量:1
  • 3傅立敏,扶原放.轿车并列行驶湍流特性的数值模拟[J].吉林大学学报(工学版),2005,35(4):358-362. 被引量:18
  • 4傅立敏著..汽车空气动力学[M].北京:机械工业出版社,2006:151.
  • 5王福军编著..计算流体动力学分析 CFD软件原理与应用[M].北京:清华大学出版社,2004:272.
  • 6Azim A F. An Experimental Study of the Aerodynamic Interference Between Road Vehicles[C]//International Congress & Exposition. Analysis of Vehicle Aerodynamics. Detroit: SAE, 1994:139-151. 被引量:1
  • 7Le Good G M, Garry K P. On the Use of Reference Models in Automotive Aerodynamics [C]// 2004 SAE World Congress. Vehicle Aerodynamics. Detroit: SAE, 2004:18-20. 被引量:1
  • 8Strachan R K, Knowles K, Lawson N J. A CFD and Experimental Study of an Ahmed Reference Model[C]//2004 SAE World Congress. Vehicle Aerodynamics. Detroit: SAE, 2004:5-6. 被引量:1

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