Coupled CFD/CSD Analysis of a Hovering Rotor Using High Fidelity Unsteady Aerodynamics and a Geometrically Exact Rotor Blade Analysis

摘要

This paper presents a combination of a computational structural dynamics (CSD) andhigh fidelity unsteady computational fluid dynamics (CFD) analysis. Regarding a helicopter inhover, aerodynamic loads are computed from the three-dimensional Navier-Stokes solver inoverlapped grids, and blade motions are obtained from the geometrically exact rotor beamanalysis. To couple those analyses, a loose coupling method is adopted and the results arevalidated regarding a civil transport helicopter.