数字海洋与水下攻防2024，Vol.7Issue(3)：318-325,8.DOI:10.19838/j.issn.2096-5753.2024.03.010
仿生机器鱼外形设计及流场阻力数值分析
Shape Design and Numerical Analysis of Flow Field Resistance of Bionic Robot Fish
耿文豹 1魏永康 1洪树峰 1黄佳进1
作者信息
- 1. 汕头大学 工学院,广东 汕头 515063
- 折叠
摘要
Abstract
In the process of robotic fish design,shape design of fish body and tail fin is very important.In order to study the shape of the whole fish with less fluid resistance and higher propulsion efficiency,three different robotic fish models are established taking tuna,dolphin and sailfish as bionic objects.Boundary conditions are defined using dynamic mesh technology.The hydrodynamic performances such as velocity and fish body force of the three models in the flow field are analyzed by numerical methods.The results show that the sailfish model has the best swimming performance,and the drag force during travelling is smaller than that of the tuna and dolphin models,and the propulsion efficiency of the sailfish model is higher by comparison of Strouhal number.On the other hand,the crescent-fin bionic fish has the highest swimming speed,which is about 2.2 times of the octagonal-fin bionic fish.Therefore,sailfish crescent-finned robotic fish has better swimming performance.The calculation results provide a good reference value for reducing the fluid resistance of the machine fish and improving its propulsion efficiency.关键词
仿生机器鱼/静水阻力/外形/推进效率/数值分析Key words
bionic robotic fish/hydrostatic drag/shape/propulsive efficiency/numerical analysis分类
信息技术与安全科学引用本文复制引用
耿文豹,魏永康,洪树峰,黄佳进..仿生机器鱼外形设计及流场阻力数值分析[J].数字海洋与水下攻防,2024,7(3):318-325,8.
