Experimental Analysis of Aerodynamics Characteristics of Adaptive Multi-Winglets

Abstract

The research aim is the study of the potential use of adaptative multi-winglets to get reductions in the induced drag through variations of cant angle winglets. Different studies have been showing that the flow in the wing-tip can be redirect using small aerodynamics superficies, thus reducing the induced drag. The model to be tested is composed of a rectangular wing built from a profile NACA 65 3 − 018 constituted of three winglets called tip-sails, which are small wings without sweep at 25% chord. The tests were in a regime at a number Reynolds of 350,000. The results are analyzed by the interpretation of lift, drag and mapping of the wake through anemometry techniques of hot wire.

Developments in Wingtip Vorticity Mitigation Techniques: A Comprehensive Review

“…In another wind tunnel study, Catalano and Ceron-Muñoz [110] examined the influence of an adaptive multi-winglet system on the aerodynamic properties of a low aspect ratio wing. Six main configurations were considered in their studies, known as Conf.…”

Experimental Investigation on the Effect of Multi-Winglets

“…In cruise conditions the induced drag is responsible for approximately 30% on entire drag and also 50% in high-lift conditions [1]. Hence to reduce the induced drag, winglets are been used, by which fuel consumption goes down and range is extended, may achieve better lift.…”

مطالعه‌ی عددی و تجربی بال ترکیبی با شبکه‌ یی از بالک‌ها در جریان‌های رینولدز پایین

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