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Affiliation of Author(s):航空学院

Title of Paper:Experimental investigation of yawing-rolling coupling effects on unsteady aerodynamic characteristics of an aircraft

Journal:MODERN PHYSICS LETTERS B

Key Words:Yawing-rolling coupled motion unsteady aerodynamics large angles of attack characteristic time constant

Abstract:In this paper, an aircraft model was tested in the wind tunnel with different degrees of yaw roll coupling at different angles of attack. The dynamic increments of yawing and rolling moments are compared to study the coupling effects on damping characteristics. The characteristic time constants are calculated to study the changes of flow field structure related to coupling ratios. The damping characteristics and time lag effects of aerodynamic loads calculated by dynamic derivative method are also compared with experimental results to estimate the applicability of linear superposition principle at large angles of attack.

ISSN No.:0217-9849

Translation or Not:no

Date of Publication:2018-05-10

Co-author:hd,wugenxing

Correspondence Author:沈霖,hd