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当前位置: 首页 > 文章 > 基于车载平台的车路空气动力场测量装置研究 农业机械学报 2014,45 (8) 8-13
Position: Home > Articles > Development of a Vehicle-mounted Testing Device for Aerodynamic Field around Wheels Transactions of the Chinese Society for Agricultural Machinery 2014,45 (8) 8-13

基于车载平台的车路空气动力场测量装置研究

作  者：
王聪;马飞;马威;李勇;郭荣
单  位：
北京科技大学机械工程学院
关键词：
空气动力;CFD;车路系统;车载测量装置
摘  要：
基于三维粘性不可压缩流体雷诺平均应力方程和k-ε双方程湍流模型,采用数值计算方法对车路空气动力场进行了分析,探讨了车轮前后空气压力与车速的关系,揭示了高速行驶时车轮前后空气压力的变化规律,研制了基于车载平台的空气动力场测试装置。通过实车对车轮前后的空气压力进行了测试,试验结果与计算结果基本吻合,表明该装置能够准确测量实际空气压力,为车路系统空气动力场的研究提供了一种有效手段。
译  名：
Development of a Vehicle-mounted Testing Device for Aerodynamic Field around Wheels
作  者：
Wang Cong;Ma Fei;Ma Wei;Li Yong;Guo Rong;School of Mechanical Engineering,University of Science and Technology Beijing;
关键词：
Aerodynamic force Computational fluid dynamics Vehicle-pavement system Vehiclemounted measurement device
摘  要：
Strong aerodynamic force is generated between the wheels and road surface while a vehicle is moving fast on the road. As a result,the road surface is stroked by instantaneous and repeated aerodynamic force. For porous asphalt pavement,the repeated air pressure acted on the pavement would cause changes of water vapour state within,leading to pavement damage. Based on the 3D viscous incompressible Reynolds-averaged Navier-stokes equations and turbulence model k-ε double equation model,the aerodynamic field between the vehicle and pavement was analyzed with numerical computing methods. The relationships between air pressures around the wheels and vehicle speed were studied. The variations of the air pressures at the front and back of the wheel were obtained. A vehicle-mounted aerodynamic field testing device was developed. Air pressures of the front and back of moving wheels were measured with the vehicle-mounted device. Testing results agreed with numerical calculation. It was indicated that the developed device could be used to investigate the aerodynamic field in vehiclepavement system.

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