Research of the influence of movable wing-tip’s cant angle on the aerodynamic characteristics of the aircraft wing

Abstract

The study discusses the design of movable end aerodynamic surfaces or tips. The influence of the cant angle, determined by the position of the wing-tip relative to the end rib’s plane of the wing, on its aerodynamic characteristics is investigated. Obtaining a picture of the flow around a DLR-F4 aircraft model at various wing angles of attack and the wingtip cant angle was performed in the ANSYS CFX. Based on the basic geometry of the model, the calculations by means of finite element analysis were validated.It is established that at small angles of attack, wing-tips close to horizontal are most effective, and at large positive and negative angles of attack – vertical ones.