Results 61 to 70 of about 75,453 (130)
, 2007 This paper presents a validation of numerical simulations in case of a forced oscillating hydrofoil. As a representative case study for vibrating blade in hydraulics machines, a 2D NACA 0009 oscillating hydrofoil is considered. Pressure coefficients from experiments and numerical simulations are presented.
Münch, Cecile +3 more
openaire +1 more source
Undulatory Propulsion at Milliscale on Water Surface
Advanced Science, Volume 11, Issue 19, May 22, 2024.The water‐surface propulsion of an undulatory swimmer stems from the complex interplay of various forces that are generated by the body's waveform and the waves at the water‐air interface. Adjusting the material and dimensions of the body, along with the excitation manner of the head, allows for tuning of the swimmer's waveform that is crucial for ...
Ziyu Ren +3 more
wiley +1 more source
, 2011 Inspired by animals, flapping wing propulsion has been of interest since the early 1900s. Flapping hydrofoil propulsion has been attempted by designers of human powered watercraft because of the novelty and the apparent high theoretical efficiency, but ...
Keith Alexander, Rajan Fernandez
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Journal of Marine Science and EngineeringThe oscillating hydrofoil represents a promising tidal energy harvesting device, but its hydrodynamic behavior and energy harvesting performance can be significantly affected by the wing-in-ground (WIG) effect under near-wall conditions. The present work
Wenting Diao +4 more
doaj +1 more source
2D Oscillating Hydrofoil [PDF]
This paper presents a validation of numerical simulations in case of a forced oscillating hydrofoil. As a representative case study for vibrating blade in hydraulics machines, a 2D NACA 0009 oscillating hydrofoil is considered. Pressure coefficients from
Avellan, Francois +3 more
core +1 more source
Cloud cavitation on an oscillating hydrofoil [PDF]
, 1994 Cloud cavitation, often formed by the breakdown of a sheet or vortex cavity, is believed to be responsible for much of the noise and erosion damage that occurs under cavitating conditions.
Reisman, G. E. +2 more
core
Experimental Apparatus for the Study of Oscillating Hydrofoil Energy Generation
, 2021 Current riverine-based hydropower is expensive and damaging to the local ecosystem. Oscillating hydrofoil turbines, however, are estimated to be much cheaper and offer a lower impact on the local ecosystem.
core
Fluid-structure coupling for a non-sinusoidal forced oscillating hydrofoil based on an immersed boundary method [PDF]
, 2017 Fluid-structure investigations in hydraulic machines using coupled simulations based on dynamical re-mesh are particularly time-consuming. This paper presents an implementation of an immersed boundary (IB) method for dynamical boundary flowing problem in
Wang, W +2 more
core +1 more source
, 2008 The International Moth dinghy is a 3.355m long single handed, una-rigged monohull dinghy. The class rules allow the use of hydrofoil that in certain wind conditions can significantly reduce resistance.
Findlay, M.W., Turnock, S.R.
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Research on the Influence of Hydrofoil Propulsive Parameters on Propulsion Efficiency
Journal of Marine Science and EngineeringOscillating hydrofoils can be used to simplify the study of the swinging caudal fin propulsive mode of fish, where the motion parameters have a direct impact on the hydrodynamic performance and propulsive efficiency. In this study, numerical calculations
Meng Cui +4 more
doaj +1 more source