Design and Prototype Development of a 1-DOF Flapping-foil &amp; Gliding UUV

Ding, Hu; Song, Baowei; Yong-hui, Cao

doi:10.4172/2155-9910.s10-001

Cited by 1 publication

(1 citation statement)

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“…Numerical simulations are carried out in the fluent code using dynamic meshing on a single degree of freedom flapping-foil movement, which demonstrated the mechanism of flapping foil. The turbulence effects were taken into account, and the turbulent stress was evaluated by means of the realizable k-epsilon model [8]. The detailed hydrodynamic analysis of the thrust generated by an oscillating hydrofoil is carried out using numerical and experimental studies.…”

Section: Literature Review: State Of the Artmentioning

confidence: 99%

Biological Propulsion Systems for Ships and Underwater Vehicles

Mannam¹,

Krishnankutty²

2019

Propulsion Systems

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Regulations and performance requirements related to technology development on all modes of transport vehicles for reduced pollution and environmental impact have become more stringent. Greening of transport system has been recognized as an important factor concerning global warming and climate change. Thus environment-friendly technical solutions offering a reduction of noxious exhaust gases are in demand. Aquatic animals have good swimming and maneuvering capabilities and these observations have motivated research on fish-like propulsion for marine vehicles. The fish fin movements, used by fish for their locomotion and positioning, are being replicated by researchers as flapping foils to mimic the biological system. Studies show that flapping foil propulsion systems are generally more efficient than a conventional screw propeller, which suffers efficiency losses due to wake. The flapping foil propulsors usually do not cavitate and have less wake velocity variation. These aspects result in the reduction of noise and vibration. The present study will cover an overview of aquatic propulsion systems, numerical simulations of flapping foils and ship model self-propulsion experiments performed using flapping foil system, particle image velocimetry (PIV), and digital fluoroscopy studies conducted on fish locomotion. Studies performed on underwater and surface vehicles fitted with flapping fins will also be presented.Keywords: bioinspired propulsors, digital fluoroscopy and particle image velocimetry (PIV), fish with caudal fin and pectoral fins, ships and underwater vehicles, propulsive efficiency Biological Propulsion Systems for Ships and Underwater Vehicles DOI: http://dx.doi.org/10.5772/intechopen.82830 Biological Propulsion Systems for Ships and Underwater Vehicles DOI: http://dx.doi.org/10.5772/intechopen.82830

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Section: Literature Review: State Of the Artmentioning

confidence: 99%