仿生非光滑汽车表面的减阻分析  

Analysis of Aerodynamic Drag Reduction on Automobile by Using Bionic Non-smooth Surface

作　　者：谌可[1] 王耘[1] 曹开元[1] 宋小文[1] 

机构地区：[1]浙江大学,杭州310027

出　　处：《中国机械工程》2012年第8期1001-1006,共6页China Mechanical Engineering

摘　　要：基于计算流体力学数值模拟方法,将非光滑表面应用于汽车。通过仿真实验研究非光滑车身表面气动减阻的可行性,并采用正交试验方法,通过计算汽车的空气阻力系数来分析非光滑单元体的形状、大小,以及分布位置和排列方式对减阻性能的影响,根据分析结果得到了合理且能够减阻的汽车仿生非光滑表面结构。This paper applied non-smooth surface to automobile,and used CFD to research the feasibility of aerodynamic drag reduction on automobile by using bionic non-smooth automobile surface.Furthermore,an orthogonal experiment was designed.By calculating the aerodynamic drag coefficient of automobile,the performances of aerodynamic drag reduction on different bionic non-smooth automobile surface were compared,and the most reasonable bionic non-smooth automobile surface structure was obtained,that is able to reduce aerodynamic drag.

关 键 词：非光滑 汽车 减阻 空气阻力系数 正交试验 CFD 

分 类 号：U461.1[机械工程—车辆工程] TB17[交通运输工程—载运工具运用工程]