Since the birth of bio-inspired flap**-wing micro air vehicles, a controversial topic, ie,
whether and to what extent a flap** wing can outperform conventional micro rotors, has …

Compared with traditional underwater vehicles, bio-inspired fish robots have the advantages
of high efficiency, high maneuverability, low noise, and minor fluid disturbance. Therefore …

Theory and modelling remain central to improving our understanding of undulatory and
oscillatory swimming. Simple models based on added mass can help to give great insight …

A scaling formulation is constructed for the hydrodynamic thrust by an undulatory propulsor
based on the vortex dynamics. It states that the propulsion thrust is in scale with the square …

A classic lift decomposition (Von Kármán & Sears, J. Aeronaut. Sci., vol. 5, 1938, pp. 379–
390) is conducted on potential flow simulations of a near-ground pitching hydrofoil. It is …

This paper presents a parametric study on a forced pitching hydrofoil. The non-dimensional
frequency (Strouhal number, St d) and amplitude ratio (A∗) of the hydrofoil pitching are …

Scaling laws for the thrust production and energetics of self-propelled or fixed-velocity three-
dimensional rigid propulsors undergoing pitching motions are presented. The scaling …

Inviscid computational results are presented on a self-propelled swimmer modelled as a
virtual body combined with a two-dimensional hydrofoil pitching intermittently about its …

Flap**-wing-based propulsion is ubiquitous in Nature, and it is free in all directions. In this
work, the hydrodynamic behaviour of an unconstrained flap** foil, which can self-propel in …

Unsteady flow characteristics and propulsive performance during self-propulsion of various
types of fishes-like undulating 2D NACA0012 hydrofoil are studied using a unified kinematic …