【摘要】 采用STAR-CCM+软件对仿鲹科机器鱼水动力性能影响因素进行分析，根据鲹科鱼外形尺寸、形状参数等数据建立机器鱼三维模型，对不同尾鳍形状和展弦比，不同攻角和游速下的机器鱼水动力性能进行模拟。对比分析每组工况的水动力分析结果表明，新月形尾鳍水动力性能更好，展弦比大的尾鳍水动力性能更好；低于临界攻角的尾鳍攻角越大水动力性能越好；水流速度越小所受阻力越小，尾鳍推动效率越好。更多还原

【Abstract】 The STAR-CCM+ software was used to analyze the factors affecting the hydrodynamic performance of robotic fish imitating the Carangidae family. A three-dimensional model of the robotic fish was established based on the external dimensions, shape parameters, and other data of the Carangidae family. The hydrodynamic performance of the robotic fish was simulated under different tail fin shapes and aspect ratios, as well as different angles of attack and swimming speeds. Comparing and analyzing the hydrodynamic analysis results of each operating condition, it was shown that the crescent shaped tail fin has better hydrodynamic performance, and the tail fin with a large aspect ratio has better hydrodynamic performance; the larger the angle of attack of the tail fin below the critical angle of attack, the better the hydrodynamic performance; the smaller the water flow velocity, the less resistance it experiences, and the better the efficiency of the tail fin propulsion.更多还原