二维波状摆动式鱼类自主航行推进性能研究  

Research on propulsion performance of autonomous navigation of 2D fish under the undulatory mode

作　　者：王志东[1] 丛文超[1] 李力军[1] 

机构地区：[1]江苏科技大学船舶与海洋工程学院,江苏镇江212003

出　　处：《江苏科技大学学报（自然科学版）》2010年第3期217-222,共6页Journal of Jiangsu University of Science and Technology:Natural Science Edition

基　　金：国家自然科学基金资助项目(50879031);江苏省高校自然科学基金资助项目(07KJB580031)

摘　　要：利用计算流体动力学软件Fluent对二维波状摆动式鱼类自主航行的水动力特性进行了数值模拟.在给定鱼体波动变形方程的基础上,编制实时计算鱼体不同波动参数下鱼体航行速度的程序模块,建立了波状摆动式鱼类自主航行的数值计算模型.研究了不同运动参数下的水动力性能、流场结构及航行速度,结果表明,随着摆动频率及波长的增加,鱼类能够获得更大的推力及自主航行速度.Numerical simulation of hydrodynamic character of fish was completed by means of the computational fluid dynamic software Fluent.Based on the given wave deformation equation of fish,the procedure that was used for calculating navigation velocity of fish with different parameters at real-time was worked out.Numerical calculation model of autonomous navigation of fish was established.Effect of different kinematical parameter on the flow structure of fish was studied and autonomous navigation velocity was determined.The result shows that high propulsion and speed are acquired when the oscillating frequency and wave length are increasing.

关 键 词：鱼类 自主航行 水动力性能 流场结构 

分 类 号：TB125[理学—工程力学]