Water flow over an oscillating hydrofoil is simulated numerically by using Realizable k-ε turbulence model employed in the computational fluid dynamics software Fluent. The finite volume method is applied in solving the Reynolds-averaged Navier-Stokes equations. The second-order upwind scheme is used in the spatial discretization. The SIMPLEC algorithm is selected for velocity-pressure correction and iterative solution of the discretized equations. Some numerical results from the method in this paper are compared and validated with previous results available. The effects of several parameters on the force and flow structure around the oscillating hydrofoil are investigated. It is found that the oscillating amplitude and frequency have significant effects on the vortex formation, shedding and force characteristics under certain angle of attack.%采用计算流体力学软件Fluent提供的Realizable k-ε湍流模型计算了振荡水翼的绕流问题,利用有限体积法求解雷诺平均N-S方程,空间离散应用二阶迎风格式,速度-压力耦合格式为SIMPLEC格式;为了验证该数值格式及湍流模型,计算了文献中的算例并做了对比;考察了不同参数对振荡水翼周围流场及受力特征的影响,研究表明在一定水翼攻角条件下,水翼振幅及振荡频率均对振荡水翼的涡结构产生发展及其受力特征具有明显的影响.
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