基于动态混合网格的双鱼串列巡游数值模拟  

Numerical simulation of undulated swimming of two in- line fishes based on dynamic hybrid mesh

作　　者：张来平[1] 常兴华[1] 段旭鹏[1] 王振亚[1] 张涵信[1] 

机构地区：[1]中国空气动力研究与发展中心,四川绵阳621000

出　　处：《实验流体力学》2008年第B12期28-34,65,共8页Journal of Experiments in Fluid Mechanics

基　　金：国家自然科学基金资助项目（资助号：10621062,90405014）.

摘　　要：观察研究发现，在鱼类的群游中，后鱼可以利用前鱼尾迹中有利的涡结构来增大自己的推力，减少功耗。本文利用作者以往发展的动态混合网格生成技术和相应的不可压缩流非定常计算方法，在单鱼巡游数值模拟的基础上，数值模拟了双鱼串列巡游的非定常流动，分析了摆动频率、摆动相位差以及流向间距对推力、功耗等流体动力学特性的影响。In fish schooling, the following fish can benefit from the vortex of the fore fishes and their swimming ability can be greatly enhanced. In this paper, the undulated swimming of two in - line fishes was simulated numerically based on dynamic hybrid mesh method and incomPressible flow solver. The force coefficients, vortex contours and the streamlines were calculated. The influence of phase speed and swimming phase as well as the fore - and - aft distance between fishes was studied.

关 键 词：动态混合网格 不可压缩流 非定常流动 生物仿生流体力学 

分 类 号：V211.15[航空宇航科学与技术—航空宇航推进理论与工程]