Results 1 to 10 of about 116 (94)
An inertial mechanism behind dynamic station holding by fish swinging in a vortex street [PDF]
Scientific Reports, 2022 Many aquatic and aerial animal species are known to utilise their surrounding flow field and/or the induced flow field of a neighbour to reduce their physical exertion, however, the mechanism by which such benefits are obtained has remained elusive.
Sam Tucker Harvey +4 more
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Numerical Analysis of Hydrodynamics for Bionic Oscillating Hydrofoil Based on Panel Method [PDF]
Applied Bionics and Biomechanics, 2016 The kinematics model based on the Slender-Body theory is proposed from the bionic movement of real fish. The Panel method is applied to the hydrodynamic performance analysis innovatively, with the Gauss-Seidel method to solve the Navier-Stokes equations ...
Gang Xue +3 more
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Hydrodynamic Study of Flow-Channel and Wall-Effect Characteristics in an Oscillating Hydrofoil Biomimetic Pumping Device [PDF]
BiomimeticsTo clarify how flow-channel configuration and wall spacing govern the hydrodynamic performance of an oscillating-hydrofoil biomimetic pumping device, this study conducted a systematic numerical investigation under confined-flow conditions. Using a finite-
Ertian Hua +3 more
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Effects of non-sinusoidal pitching motion on the propulsion performance of an oscillating foil. [PDF]
PLoS ONE, 2019 Numerical simulations have been used in this paper to study the propulsion device of a wave glider based on an oscillating hydrofoil, in which the profile of the pitching and heaving motion have been prescribed for the sake of simplicity.
Zhanfeng Qi +3 more
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Journal of Marine Science and Engineering, 2019 To improve the energy extraction performance of the oscillating hydrofoil, the lift force that acts on the oscillating hydrofoil is analyzed. The pressure difference between the oscillating hydrofoil‘s opposing surfaces is dominant to generate the ...
Yong Zhan
exaly +3 more sources
Energies, 2021 The paper focuses on the study of a semi-activated system, based on a combination of two movements of forced pitching and free-heaving motion. Therefore, quantifying with accuracy the hydrodynamic forces applied on the hydrofoil seems to be crucial. This
Sylvain Guillou +2 more
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Comparing Models of Lateral Station-Keeping for Pitching Hydrofoils [PDF]
Biomimetics, 2019 Fish must maneuver laterally to maintain their position in schools or near solid boundaries. Unsteady hydrodynamic models, such as the Theodorsen and Garrick models, predict forces on tethered oscillating hydrofoils aligned with the incoming flow.
Peter Gunnarson +2 more
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Hydrodynamic and Energy Extraction Properties of Oscillating Hydrofoil With Double Fowler Flaps
Frontiers in Marine ScienceIn order to improve the energy extraction capability of oscillating hydrofoils, a dual Fowler flap structure is adopted as a device to increase lift.
Guang Sun +4 more
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Various Wavy Leading-Edge Protuberance on Oscillating Hydrofoil Power Performance [PDF]
Journal of Applied Fluid Mechanics, 2023 This paper is presented to compare various wavy leading-edge protuberances on oscillating hydrofoil performance and power efficiency. The unsteady turbulent 3D flow simulations were carried out by using the StarCCM+ software.
A. Abbasi +3 more
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Energies, 2023 The unsteady RANS equations for a two-dimensional hydrofoil were solved using ANSYS Fluent to model and simulate the hydrofoil at a constant Reynolds number, Re, of 2 × 105 and a fixed reduced frequency, f*, of 0.14.
Arun Raj Shanmugam +2 more
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