基于鲨鱼盾鳞的空气动力学仿生减阻研究  

Research on Aerodynamic Bionic Drag Reduction Based on Shark Placoid Scale

作　　者：王鹤銮 景然 王靖宇[1] 刘昂 于佳馨 李美佳[1] WANG Heluan;JING Ran;WANG Jingyu;LIU Ang;YU Jiaxin;LI Meijia(Jilin University,Jilin Changchun 130022)

机构地区：[1]吉林大学,吉林长春130022

出　　处：《汽车实用技术》2021年第19期94-97,共4页Automobile Applied Technology

摘　　要：通过对鲨鱼盾鳞进行仿生,建成三维模型,以MIRA阶梯背模型为基础模型,将“盾鳞”模型安装在汽车的车头前部、轮胎前部、发动机盖与前锋窗玻璃连接处等不同位置,通过控制变量法,应用STARCCM+软件进行仿真,得出当数量、尺度一定时,三种位置均可使整车气动阻力降低,其中轮胎前部位置减阻效果最明显。计算和分析的结论可以为汽车的减阻研究、造型优化等提供科学的理论依据。By bionics the shark shield scales,a three-dimensional model is built.Based on the MIRA step back model,the"placoid scale"model is installed on the front of the car's front,the front of the tires,and the junction between the engine cover and the front window glass.Through the control variable method,the STARCCM+software is used for simulation,and it is concluded that when the quantity and scale are constant,the three positions can reduce the aerodynamic resistance of the vehicle,and the front position of the tire has the most obvious drag reduction effect.The conclusions of calculation and analysis can provide scientific theoretical basis for the research of drag reduction and styling optimization of automobiles.

关 键 词：空气动力学 仿生 非光滑表面 气动减阻 数值仿真 

分 类 号：U461.1[机械工程—车辆工程]