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 …

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 …

The effects of chordwise deformation and the half-amplitude asymmetry on the
hydrodynamic performance and vortex dynamics of batoid fish have been numerically …

The propulsive performance of an unsteady heaving and pitching foil is considered, and an
extensive experimental parameter space of motion amplitudes, frequencies, and phase …

The impact of Strouhal number St (= 0.1–1.0), Reynolds number Re (= 50–2000) and
dimensionless wavelength λ (= 0.5–2.0) on the hydrodynamic performance of a travelling …

This paper experimentally investigates the propulsion of semi-active hydrofoils from wave
energy. For the case of NACA 0012 foil section, heave amplitude h 0= 1.0 chord, Reynolds …

The drag–thrusttransition and wake structures of a pitching foil undergoing asymmetric
sinusoidal oscillation are numerically investigated for foil thickness-based Strouhal number …

Manta rays use wing-like pectoral fins for intriguing oscillatory swimming. It provides rich
inspiration for designing potentially fast, efficient, and maneuverable soft swimming robots …

Bio-inspired flapping hydrofoils can be used for propulsion or energy extraction, which has
aroused the interest of many scholars. This paper experimentally and numerically studies …