Wingtip slots, where the outer primary feathers of birds split and spread vertically, are
regarded as an evolved favorable feature that could effectively improve their aerodynamic …

In aeronautical engineering, drag reduction constitutes a challenge and there is room for
improvement and innovative developments. The drag breakdown of a typical transport …

In this work, the aerodynamic and structural investigation of the winglet is done
experimentally. The lift force and the drag force are acted on the winglet. The modification is …

Aircraft wings are the lifting surfaces with the chosen aerofoil sections. The efficiency as well
as the performance of an aircraft mostly depends on the aerodynamic characteristics eg lift …

Aircraft performance is highly affected by induced drag caused by wingtip vortices. Winglets,
referred to as vertical or angled extensions at aircraft wingtips, are used to minimise vortices …

The functional capabilities of flexible, propulsive appendages are directly influenced by their
mechanical properties. The fins of fishes have undergone extraordinary evolutionary …

This review is mainly based on the aerodynamic analysis and optimization of winglets, as
well as the summarized induced drag (Di) and vortex detection on different types of aircraft …

Bird wings have been studied as prototypes for wing design since the beginning of aviation.
Although wing tip slots, ie wings with distinct gaps between the tip feathers (primaries), are …

The slotted wingtip structure of birds is considered to be the product of improving flight
efficiency in the process of evolution. It can change the vortex structure of wingtip and …

Bird wings have split primary feathers that extend out from the wing surface. This structure is
called the wingtip slot, which is recognized as a product of bird evolution to improve flight …