The fluid dynamics of flapping foils are reviewed in this article. A very wide range of
researches are conducted for the two-dimensional flapping foil which has a relatively simple …

There are nearly a million known species of flying insects and 13 000 species of flying warm-
blooded vertebrates, including mammals, birds and bats. While in flight, their wings not only …

An improved quasi-steady aerodynamic model for flapping wings in hover has been
developed. The purpose of this model is to yield rapid predictions of lift generation and …

A flapping-wing micro air vehicle (FW-MAV) operating with aerodynamically optimal wing
configuration and kinematics may save energy and thus prolong flight time. In this work, we …

In this article, the effect of the pivot point location on the thrust performance of a two-
dimensional sinusoidal flapping elliptic airfoil in a forward flight condition is investigated …

The objective of this work is to present combined numerical and experimental studies of
natural flow-induced vibrations of flexible hydrofoils. The focus is on identifying the …

A quasi-steady aerodynamic model in consideration of the center of pressure (CP) was
developed for insect flight. A dynamically scaled-up robotic hawkmoth wing was used to …

Unlike other insects, a butterfly uses a small amplitude of the wing-pitch motion for flight.
From an analysis of the dynamics of real flying butterflies, we show that the restrained …

Airfoil performance of a NACA 0012 held at static angles of attack from− 20° to 20° in the
wake of a circular cylinder is investigated experimentally. Time-averaged airloads were …

Force measurements and digital particle image velocimetry (DPIV) were carried out to reveal
the effects of the aspect ratio (AR) of an insect-like flapping wing. A total of seven aspect …