This paper reports a fundamental investigation on the aerodynamics of two-dimensional
flapping wings in tandem configuration in forward flight. Of particular interest are the effects …

In this study, we investigated the backward free flight of a dragonfly, accelerating in a flight
path inclined to the horizontal. The wing and body kinematics were reconstructed from the …

To design a flapping-wing micro air vehicle (FWMAV), the hovering flight action of a beetle
species (Protaetia brevitarsis) was captured, and various parameters, such as the hindwing …

Dragonfly wings are highly specialized locomotor systems, which are formed by a
combination of several structural components. The wing components, also known as …

Computational fluid dynamics (CFD) analyses are conducted to evaluate the gliding
performance of a three-dimensional (3-D) corrugated wing while considering variations in …

At low Reynolds numbers, the variable flexibility of flapping insect wings is considered
essential in improving the favorable aerodynamic forces. To further explore whether …

Insect wings are deformable airfoils, in which deformations are mostly achieved by
complicated interactions between their structural components. Due to the complexity of the …

The high torsional flexibility of insect wings allows for elastic recoil after the rotation of the
wing during stroke reversal. However, the underlying mechanism of this recoil remains …

Spanwise twist can dominate the deformation of flapping wings and alters the aerodynamic
performance and power efficiency of flapping wings by changing the local angle of attack …

Force and PIV measurements were performed on rigid tandem wings in the hovering and
forward flights at typical Reynolds numbers of real dragonflies. The Strouhal number of the …