对二维水翼结构进行流固耦合运动分析，利用大涡模拟方法计算高雷诺数下水翼绕流场，流场力作用于二自由度刚体上导致周期性的垂荡和转动，龙格库塔法求解刚体水翼的运动方程，位移参数作为下一时间步流场计算的边界条件，具体通过编译自定义函数控制刚体运动和流场网格变化。探讨了初始攻角、刚心位置以及来流速度对水翼振动的影响，发现在来流速度增大至某一数值时水翼发生了颤振现象，并在时域与频域上对颤振的发生机理进行深入探讨。%The objective of this research is to investigate the fluid-structure interaction motion of a two-dimensional hydrofoil in viscous flow. Large-eddy simulation method is used to calculate the flow field around hydrofoil,and Runge-Kutta method is applied to solve equations of rigid body motion. Flow results and motion results exchange data at the hydrofoil wall surface,by compiling a user-defined functions to control rigid body motion and flow field grid update. The influence of the hydrofoil parameters,i.e. attack angle,elastic axis position and flow velocity,on vibration are discussed. Once the velocity increase to a certain value,hydrofoil flutter phenomenon occurred. Also,discussion on time and frequency domain is held to investigate the flutter phenomenon.
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