考虑侧壁面效应的拍动翼推进特性数值模拟研究  

Side wall effect on the propulsive performance of flapping foils--A numerical investigation

作　　者：李永成[1] 张璇[1] 潘子英[1] LI Yong-cheng;ZHANG Xuan;PAN Zi-ying(State Key Laboratory of Hydrodynamics,China Ship Scientific Research Center,Wuxi 214082,China)

机构地区：[1]中国船舶科学研究中心,江苏无锡214082

出　　处：《船舶力学》2020年第5期570-577,共8页Journal of Ship Mechanics

基　　金：装备预研基金重点项目(61402070301)。

摘　　要：本文基于重叠网格技术,采用商业软件Fluent对考虑侧壁面效应下的拍动翼推进特性进行了数值模拟研究,系统地分析了不同侧壁面距离下的拍动翼推进特性。结合推力系数及推进效率,分析发现存在最优侧壁面距离。通过对不同侧壁面距离下拍动翼后方的涡流场结构及速度压力分布云图进行分析,从流动机理的角度对数值预报结果进行了解释。The numerical investigation is carried out upon side wall effect on flapping foil’s propulsive performance by using the overlapping grid method. The propulsive performance of flapping foil under different side wall distances is analyzed and the optimum side wall distance is also determined with consideration of the thrust coefficient and propulsive efficiency. Vortex structures at the rear part of flapping foil as well as the pressure and velocity distribution contour on the flapping foils’ surface under different side wall distances are also presented and discussed.

关 键 词：拍动翼 重叠网格 侧壁面效应 流动机理 

分 类 号：U661.1[交通运输工程—船舶及航道工程]