本文主要采用动网格技术对柔性翼仿生推进特性进行数值模拟研究，系统分析运动幅值、运动频率以及来流速度对柔性翼推进特性的影响，确立最佳斯特哈尔数。对不同斯特哈尔数下柔性方的涡流场结构进行分析，从流动机理角度对研究结果进行了解释。
A numerical investigation on the propulsive performance of a flexible foil undergoing sinusoidal-pitching motion is performed in this study by using dynamic grid method.The systematic analysis upon flexible foil’s propulsive performance under different motion parameters, such as motion frequencies, motion amplitudes and incoming velocities are carried out and the optimum St number is specified.The vortex structures under several typical St numbers are presented and discussed, providing explanation for the numerical results gotten above.
2020,42(9): 71-74 收稿日期：2019-11-19
DOI：10.3404/j.issn.1672-7649.2020.09.013
分类号：TH4
基金项目：国防基础科研项目(JCKY2018207CA02)
作者简介：李永成(1992-),男,硕士,工程师,研究方向为流体力学
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