K.M. Yoo

Reciprocal interaction phenomena between rotor blades and their shed wake are numerically simulated using unsteady vortex lattice method along with time-dependent strength of vortices traveling in prescribed wake geometries. This time-marching procedure is an improvement over the classical two-dimensional quasisteady aerodynamics which can predict neither the threedimensional tip-relief effect, nor the unsteady wake dynamics beneath the rotor, both of which play an important role in rotor aeroelastic analysis. The perturbed time histories of thrust for a two-bladed hovering rotor undergoing various unsteady pitching motions clearly show the effects of the three-dimensional tip-relief effect and the unsteady wake dynamics effect of near and returning wake between a preceding and a reference blade including successive revolutions.

International Forum on Aeroelasticity and Structural Dynamics 1991, Aachen

Conference Paper

englisch

21,0 x 29,7 cm, 6 Seiten

DGLR-Bericht, 1991, 1991-06, International Forum on Aeroelasticity and Structural Dynamics 1991 Proceedings; S.102-107; 1991; Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn

NA

aeroelasticity

Bestellbar

1991