Discrete vortex method for simulating unsteady flow around pitching aerofoils

摘要

A modified discrete vortex method to simulate the separated flow around an aerofoil undergoing pitching motion is described. The vorticity generated in the thin layer around the body is discretized into vortices in accordance with the multipanel surface representation. By convection and diffusion the vortices are released from the body and advanced in the wake as determined by the Biot-Savart law and random-walk model, respectively.