二维柔性摆动水翼水动力性能的数值分析

In this paper, in order to study bio-mimetic propulsion, hydrodynamic performance of a 2D flexible oscillating hydrofoil is analyzed by Computational Fluid Dynamics Software FLUENT. Effects of flexible amplitude, inflow velocity, and flexible phase angle are studied by numerical siulation. The computational results indicate that vortices shedding is delayed and vorticity is increased by larger flexible amplitude. Besides that, as inflow velocity goes up, both input power and output power decrease. Apart from those, the highest propulsion efficiency is gained at flexible phase angle equalling 90 degree.