22nd Congress of International Council of the Aeronautical Sciences, Harrogate, UK, 28 August - 1st September, 2000
Paper ICAS 2000-2.2.1

AIRLOAD PREDICTIONS FOR DELTA WINGS AT HIGH INCIDENCE

X. Z. Huang, H. Y. Lou, E. S. Hanff
NRC, Canada

Keywords: vortex breakdown, aerodynamic load, high incidence

An approach based on the application of the Non-Linear Indicial Response method to internal flow state variables, such as vortex breakdown location over a delta wing, is developed to predict the non-linear and time dependent loads acting on the wing undergoing high angular rates at high incidence. By combining experimental, analytical and simple computational approaches this method can be used to predict airloads at the conceptual design stage with a minimum of testing requirements and simple computational work. Additional work is required to further refine the method, which can, in principle, be extended to other situations.

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