基于重叠网格理论的拍动翼推进特性研究  

Numerical Study on Flapping Foil Based on Overset Method

作　　者：李永成[1] 徐令令[1] 赵桥生[1] 张安通 王习建[1] LI Yong-cheng;XU Ling-ling;ZHAO Qiao-sheng;ZHANG An-tong;WANG Xi-jian(State Key Laboratory of Hydrodynamics, China Ship Scientific Research Center Shanghai Branch, Wuxi 214082, China)

机构地区：[1]中国船舶科学研究中心水动力学国防重点实验室,江苏无锡214082

出　　处：《船舶与海洋工程》2018年第2期16-20,共5页Naval Architecture and Ocean Engineering

摘　　要：基于重叠网格技术对拍动翼运动进行数值模拟研究。系统地分析拍动翼的运动参数(包括升沉俯仰相位差、俯仰幅值及斯特劳哈尔数等)对推进性能的影响。结合推进效率及拍动翼后方的涡流场结构确立最佳运动参数。该求解方法可为其他动边界问题的处理提供参考。In this study, numerical simulations of the flapping foil are conducted based on the overset method and a systematic analysis is performed to investigate the effect of flapping foil’s motion parameters on the propulsive efficiency, such as the phase lag between heaving and pitching, the pitching amplitude and the Strouhal number. The optimum motion parameters are determined on the basis of self-defined propulsive efficiency and the vortex structure of the rear part of the flapping foil. The overset method can provide reference for the solution of other moving boundary problems.

关 键 词：拍动翼 重叠网格 推进特性 数值模拟 

分 类 号：U674.941[交通运输工程—船舶及航道工程]