翼面效应对并联振荡水翼获能功率的影响

To study the influence of Wing-In-surface-Effect on the hydrodynamic performance of hydrofoil, a numerical model is established based on overset grid method with the convergence study. Based on this numerical model, the hydrodynamic performance of two hydrofoils with different minimum distance is studied. To amplify the Wing-in-surface-Effect, a power generation with three hydrofoils is proposed and its power coefficient is calculated. The results show that: the decrease of the minimum spacing between hydrofoils enhances the Wing-In-surface-Effect; the power coefficient of the two hydrofoils system increases with the decrease of the minimum spacing between hydrofoils; the power coefficient of the three hydrofoils system is greater than that of the two hydrofoils system. Through the above research, we can see that the Wing-In-surface-Effect can improve the power coefficient of hydrofoil, and the increase of the number of hydrofoils can improve the power coefficient of the hydrofoils.