Effects of Coupled Rolling and Pitching Oscillations on Transonic Shock-Induced Vortex-Breakdown Flow of a Delta WingUnsteady, transonic vortex-breakdown flow over a 65 deg. sharp edged, cropped-delta wing of zero thickness undergoing forced coupled pitching and rolling oscillations is investigated computationally. The initial condition of the flow is characterized by a transverse terminating shock which induces of the leading edge vortex cores to breakdown. The computational investigation uses the time-accurate solution of the laminar, unsteady, compressible, full Navier-Stokes equations with the implicit, upwind, Roe flux-difference splitting, finite-volume scheme. The main focus is to analyze the effects of coupled motion on the wing response and vortex-breakdown flow by varying oscillation frequency and phase angle while keeping the maximum pitch and roll amplitude equal.
Kandil, Osama A. (Old Dominion Univ. Norfolk, VA United States)
Menzies, Margaret A. (Old Dominion Univ. Norfolk, VA United States)
August 17, 2013
February 1, 1996
Publication: Aeroelastic, CFD, and Dynamic Computation and Optimization for Buffet and Flutter Applications
Meeting: 6th International Symposium on Computational Fluid Dynamics