Results 11 to 20 of about 948,432 (155)

Numerical investigation of cavity dynamics and cavitation-induced vibrations of a flexible hydrofoil [PDF]

open access: yesInternational Journal of Fluid Engineering
This work investigates the cavitation and fluid–structure interaction characteristics of a flexible NACA0015 hydrofoil. The simulation incorporates the Zwart–Gerber–Belamri cavitation model and two-way fluid–structure interactions.
Bin Xu   +7 more
doaj   +4 more sources

Fluid–Structure Interaction Simulation of Vortex-Induced Vibration of a Flexible Hydrofoil [PDF]

open access: yesJournal of Vibration and Acoustics, Transactions of the ASME, 2017
Fluid–structure interaction (FSI) is investigated in this study for vortex-induced vibration (VIV) of a flexible, backward skewed hydrofoil. An in-house finite element structural solver finite element analysis nonlinear (FEANL) is tightly coupled with the open-source computational fluid dynamics (CFD) library openfoam to simulate the interaction of a ...
Brent Craven
exaly   +3 more sources

Bidirectional Fluid–Structure Interaction Study on Hydrofoil Hardness and Oscillation Mode Optimization

open access: yesApplied Sciences
This paper investigated the optimization of the hardness and oscillation mode of flexible hydrofoils using bidirectional fluid–structure interaction (FSI) to address the issue of insufficient guidance in engineering applications.
Ertian Hua   +5 more
doaj   +4 more sources

Cavity induced vibration of flexible hydrofoils [PDF]

open access: yesJournal of Fluids and Structures, 2014
The objective of this work is to investigate the influence of cavity-induced vibrations on the dynamic response and stability of a NACA66 hydrofoil at 8° angle of attack at Re=750 000 via combined experimental measurements and numerical simulations. The rectangular, cantilevered hydrofoil is assumed to be rigid in the chordwise direction, while the ...
Akcabay, Deniz Tolga   +4 more
openaire   +6 more sources

Optimal Design and Numerical Simulation on Fish-Like Flexible Hydrofoil Propeller [PDF]

open access: yesPolish Maritime Research, 2016
Hydrofoil is widely used in underwater vehicle for the excellent hydrodynamic characteristics. Currently, researches are mostly about the rigid hydrofoil while the flexible hydrofoil, like the caudal fin, has not been studied adequately.
Xue Gang   +6 more
doaj   +3 more sources

Control of a flexible, surface-piercing hydrofoil for high-speed, small-scale applications [PDF]

open access: yes2017 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2017
In recent years, hydrofoils have become ubiquitous and critical components of high-performance surface vehicles. Twenty-meter-long hydrofoil sailing craft are capable of reaching speeds in excess of 45 knots. Hydrofoil dinghies routinely travel faster than the wind and reach speeds up to 30 knots.
Bousquet, Gabriel David Elie Sylvain   +2 more
openaire   +5 more sources

Negative lift generation in a tidal device structure [PDF]

open access: yes, 2009
Becoming aware of the impact of global warming, all countries of the European Union have agreed to produce 20% of their electricity from renewable energy by 2020.
Thilleul, Olivia
core   +7 more sources

Systematic micro heat sink optimization based on hydrofoil shape pin fins

open access: yesCase Studies in Thermal Engineering, 2021
Multi-objective optimization of the hydrofoil shaped pin fins for micro heat sinks was studied. Optimization tool utilized a multi objective genetic algorithm (MOGA) and a numerical model that was validated against previously obtained experimental single-
Fuad Ismayilov, Ali Akturk, Yoav Peles
doaj   +1 more source

Skeletons of swiftly swimming sharks: Three-dimensional analysis of lamniform vertebral morphology and mineral architecture. [PDF]

open access: yesJ Anat
We examined morphology, 3D arrangement, and mineral amount in cartilaginous vertebrae from four lamniform shark families (Alopiidae, Carchariidae, Cetorhinidae, and Lamnidae). We identified family‐specific mineralization trends, and regional patterning of structures along the column.
Knaub JL   +6 more
europepmc   +2 more sources

Numerical Analysis of the Effect of Flexibility on the Propulsive Performance of a Heaving Hydrofoil Undergoing Sinusoidal and Non-Sinusoidal Motions

open access: yesPolish Maritime Research, 2022
Numerical simulations of fluid-structure interaction (FSI) on an elastic foil heaving with constant amplitude in freestream flow are carried out at a low Reynolds number of 20,000. The commercial software STAR-CCM+ is employed to solve the flow field and
Li Fengkun   +4 more
doaj   +1 more source

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