24th Congress of International Council of the Aeronautical Sciences, 29 August-3, September 2004, Yokohama, Japan
Paper ICAS 2004-2.11.2

EXPERIMENTAL ANALYSIS OF AERODYNAMICS CHARACTERISTICS OF ADAPTIVE MULTI-WINGLETS

F. M. Catalano , H. D. Ceron-Muñoz
São Carlos Engineering School, University of São Paulo, Brazil

Keywords: induced drag, tip-sails, multi-winglets

The objective of this research is to study the potential use of adaptive multi-winglets for the reduction of vortex (induced) drag. The experimental setup consists of one rectangular semi-span wing with 250mm chord and 490 mm span. The wing tip has a tip-tank like format of 60 mm diameter and 40mm length. The inner cylindrical part of this tip-tank has three adjustable sections where the small wing lets were fixed in a similar manner of Spilman’s tip sails.

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