24th Congress of International Council of the Aeronautical Sciences, 29 August-3, September 2004, Yokohama, Japan
Paper ICAS 2004-6.11.R.2

NUMERICAL INVESTIGATION OF BVI MODELING EFFECTS ON HELICOPTER ROTOR FREE WAKE SIMULATIONS

X. K. Zioutis, A. I. Spyropoulos, D. P. Margaris, D. G. Papanikas
Fluid Mechanics Lab., Mechanical Engineering. And Aeronautics Department, University of Patras, Greece

Keywords: helicopter aerodynamics, BVI, rotor wake

This paper presents the influences of numerical Blade Vortex Interactions (BVI) simulation on the computational results of rotor blade downwash distribution and airloading. This investigation is performed on the basis of a developed computational procedure utilizing Vortex Element Method for rotor free wake computations.

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