03.1 - Aerodynamics – CFD Methods and Validation
A COMPUTATIONAL STUDY ON BLADE-VORTEX INTERACTION FOR COAXIAL ROTORS IN HOVER USING A NOVEL HIGH-ORDER SCHEME
S.-Q. Han, Sichuan University, China; W.-P. Song¹, Z.-H. Han¹; ¹Northwestern Polytechnical University, China
A novel high-order and low-dissipation scheme (WENO-K) is extended to numerical simulation of unsteady flows dominated by tip vortices around coaxial rotors in hover. The results indicates that the tip vortex structure and its unsteady evolution can be completely simulated and preserved by WENO-K scheme, and the pressure impulses on the blade caused by BVI can also be well captured.