Numerical and theoretical investigations on the leading-edge vortex mechanism of a bioinspired rotary wing

摘要

High-performance flapping wings relies on a variety of unconventional aerodynamic mechanisms such as‘clap and fling’, advanced pitch-up rotation, wake capture, and non-circulatory added mass effect, but perhaps leading-edge vortex (LEV) may stand out as the most robust mechanism for augmenting aerodynamic force production. For rotary wings, the universal mechanism of LEV also promises to break new ground in designing the blades of micro-air vehicles, wind turbines, fans and any other rotary machinery.