Journal ArticleDOI
Quenching of vortex-induced vibrations of towering structure and generation of electricity using Hula-Hoops
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TLDR
In this paper, the authors dealt with the quenching problem of vortex-induced vibrations by using devices composed of Hula-Hoops and generators, which are also able to generate electricity.About:
This article is published in Journal of Sound and Vibration.The article was published on 2004-04-22. It has received 17 citations till now. The article focuses on the topics: Quenching & Flexural rigidity.read more
Citations
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Journal ArticleDOI
VIVACE (Vortex Induced Vibration Aquatic Clean Energy): A New Concept in Generation of Clean and Renewable Energy From Fluid Flow
TL;DR: The vortex induced vibration aquatic clean energy (VIVACE) converter as discussed by the authors is based on the idea of maximizing rather than spoiling vortex shedding and exploiting rather than suppressing VIV.
Proceedings ArticleDOI
VIVACE (Vortex Induced Vibration Aquatic Clean Energy): A New Concept in Generation of Clean and Renewable Energy From Fluid Flow
TL;DR: The VIVACE (Vortex Induced Vibration Aquatic Clean Energy) Converter as mentioned in this paper is based on the idea of maximizing rather than spoiling vortex shedding and exploiting rather than suppressing VIV.
Journal ArticleDOI
The VIVACE Converter: Model Tests at High Damping and Reynolds Number Around 105
TL;DR: In this paper, the VIVACE modulo was tested in the Low Turbulence Free-Surface Water Channel of the University of Michigan to demonstrate the concept, generate electricity, measure the power out, and calculate basic benchmarking measures such as energy density.
Journal ArticleDOI
On the efficiency of energy harvesting using vortex-induced vibrations of cables
Clement Grouthier,Sébastien Michelin,Rémi Bourguet,Yahya Modarres-Sadeghi,Emmanuel de Langre +4 more
TL;DR: In this paper, the authors investigated the energy efficiency of vortex-induced vibrations of cables and found that the maximum efficiency is close to the value reached with an elastically mounted rigid cylinder.
Journal ArticleDOI
Flow-induced vibration of three unevenly spaced in-line cylinders in cross-flow
Mahmoud Shaaban,Atef Mohany +1 more
TL;DR: In this article, the authors numerically investigated the flow over three cylinders arranged in line with uneven spacing in cross-flow at a Reynolds number of 200, and the center-to-center distance between the upstream and the most downstream cylinder was kept constant at 4 diameters.
References
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Journal ArticleDOI
Lift-Oscillator Model of Vortex-Induced Vibration
ROnald T. Hartlen,I.G. Currie +1 more
TL;DR: In this paper, a second-order, linear, damped system with self-excited wake-oscillators is proposed to model the aerodynamic lift force and the instantaneous value of a fluctuating lift coefficient, whose characteristics are derived from existing experimental data.
Journal ArticleDOI
A Model for Vortex Induced Oscillation of Structures
Wilfred D. Iwan,R. D. Blevins +1 more
Journal ArticleDOI
On a theory for the vortex-excited oscillations of flexible cylindrical structures
R.A. Skop,O.M. Griffin +1 more
TL;DR: In this article, a mathematical model that enables one to predict the vortex-excited resonant response of bluff elastic cylinders is developed based on some previous work by the authors, a modified van der Pol equation is employed as the governing equation for the fluctuating lift on the cylinder and is coupled to the equation of motion of the cylinder.
Journal ArticleDOI
Formation of Vortex Streets
TL;DR: In this article, it was shown that for vortex trails in a non-viscous fluid, the mean longitudinal spacing a and mean transverse spacing h are invariant, and that the periodicity of a vortex trail is unstable.
Journal ArticleDOI
Control of flow separation by acoustic excitation
M. Nishioka,M. Asai,S. Yoshida +2 more
TL;DR: In this article, the response to the incident sound and the resulting flow instability were studied experimentally and therically on the basis of the linear stability theory, for a flat-plate airfoil, at a chord Reynolds number R c =4 x 10 4.