Journal ArticleDOI
Vortex-induced vibration of two elastically coupled cylinders in side-by-side arrangement
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In this article, two elastically coupled circular cylinders in side-by-side arrangement are investigated numerically and the Reynolds-averaged Navier-Stokes equations are solved by the finite element method for simulating the flow and the equation of motion is solved for calculating the vibration.About:
This article is published in Journal of Fluids and Structures.The article was published on 2014-01-01. It has received 50 citations till now. The article focuses on the topics: Vortex-induced vibration & Vibration.read more
Citations
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CFD analysis of energy harvesting from flow induced vibration of a circular cylinder with an attached free-to-rotate pentagram impeller
TL;DR: In this paper, a converter consisting of an elastically mounted circular cylinder and a free-to-rate pentagram impeller is proposed to harness hydrokinetic energy from water currents.
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Response and wake patterns of two side-by-side elastically supported circular cylinders in uniform laminar cross-flow
TL;DR: In this article, two side-by-side elastically supported circular cylinders in a uniform flow with the Reynolds number of 100 are numerically investigated by using the immersed boundary method, where the cylinders are constrained to oscillate in the cross-flow direction with a center-to-center spacing ratio T / D ranging from 2 to 5.
Journal ArticleDOI
Characteristics and suppression of flow-induced vibrations of two side-by-side circular cylinders
Sangil Kim,Md. Mahbub Alam +1 more
TL;DR: In this paper, a free-vibration experiment was conducted to examine flow-induced vibration (FIV) characteristics of two identical circular cylinders in side-by-side arrangements at spacing ratio T = T/D = 0.1-3.2, covering all possible flow regimes, where T is the gap spacing between the cylinders and D is the cylinder diameter.
Journal ArticleDOI
Multi-mode flow-induced vibrations of two side-by-side slender flexible cylinders in a uniform flow
TL;DR: In this article, a series of experimental tests were carried out to investigate FIV of two side-by-side flexible cylinders with high aspect ratio (length to diameter, L/D = 350) in a towing tank.
Journal ArticleDOI
Vortex-induced vibration suppression of a main circular cylinder with two rotating control rods in its near wake: Effect of the rotation direction
Hongjun Zhu,Yue Gao +1 more
TL;DR: In this paper, the effect of rotation direction of control rods on vortex-induced vibration suppression is investigated numerically by computational fluid dynamics (CFD) models coupling with a fluid-structure interaction (FSI) computational method.
References
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Journal ArticleDOI
Two-equation eddy-viscosity turbulence models for engineering applications
TL;DR: In this paper, two new two-equation eddy-viscosity turbulence models are presented, which combine different elements of existing models that are considered superior to their alternatives.
Journal ArticleDOI
Reassessment of the scale-determining equation for advanced turbulence models
TL;DR: In this paper, a two-equation turbulence model is proposed that is shown to be quite accurate for attached boundary layers in adverse pressure gradient, compressible boundary layers, and free shear flows.
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A critical review of the intrinsic nature of vortex-induced vibrations
TL;DR: A comprehensive review of the progress made during the past two decades on vortex-induced vibration (VIV) of mostly circular cylindrical structures subjected to steady uniform flow is presented in this article.
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Vortex formation in the wake of an oscillating cylinder
TL;DR: In this paper, it was shown that the acceleration of the cylinder each half cycle induces the roll-up of the two shear layers close to the body, and thereby the formation of four regions of vorticity each cycle.
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Vortex shedding from oscillating bluff bodies
TL;DR: In this paper, the authors present a comprehensive review of vortex shedding in two-dimensional bluff-body wakes and present irrespective of whether the separating boundary layers are laminar or turbulent, and if the body is flexible this can cause oscillations.