Journal Article10.1115/1.3222906
Models for Vortex-Induced Vibration of Cylinders Based on Measured Forces
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TL;DR: In this paper, the authors developed experimentally based nonlinear models for the vortex shedding forces on oscillating cylinders and determined the lift in phase and out-of-phase with cylinder motion and mean drag.
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Abstract: This paper develops experimentally based nonlinear models for the vortex shedding forces on oscillating cylinders. The lift in-phase and out-of-phase with cylinder motion and mean drag are determined from experiments with cylinder amplitudes from 0.05 cm to 1.5 cm, and reduced velocities between 2 and 12. The results are reduced to a uniform grid, tabulated, and applied to prediction of resonant, nonresonant, and time history vortex-induced vibration. The results are reduced to a uniform grid, tabulated, and applied to prediction of resonant, nonresonant and time history vortex-induced vibration.
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Citations
Experimental Investigation of Vortex-Induced Vibration in One and Two Dimensions With Variable Mass, Damping, and Reynolds Number
TL;DR: In this paper, the effects of mass, damping, Reynolds number, and strakes on vortex-induced vibration amplitude, frequency, entrainment, and drag are reported.
217
Experiments with a steel catenary riser model in a towing tank
TL;DR: In this article, a model test with a steel catenary riser (SCR) was conducted in a towing tank, and the main purpose of the experiment was to gain further understanding of the global SCR dynamic behavior with vortex-induced vibration (VIV).
53
A hybrid piezoelectric-electromagnetic energy harvester from vortex-induced vibrations in fluid-flow; the influence of boundary condition in tuning the harvester
TL;DR: In this paper , a hybrid piezoelectric-electromagnetic energy harvester is proposed to harvest energy from fluid flow around a bluff-body using vortex-induced vibration (VIV).
44
Vortex induced vibration energy harvesting using magnetically coupled broadband circular-array piezoelectric patch: Modelling, parametric study, and experiments
Muhammad Hafizh,Asan Gani Abdul Muthalif,Jamil M. Renno,Mohammad R. Paurobally,Issam Bahadur,Hassen M. Ouakad,Mohamed Sultan Mohamed Ali +6 more
TL;DR: In this paper , the authors proposed a piezoelectric energy harvester used in a pipe array to harvest oscillations from vortex-induced vibration, which can accommodate slight changes in the freestream velocity.
27
Characterization of variable hydrodynamic coefficients and maximum responses in two-dimensional vortex-induced vibrations with dual resonances
Hossein Zanganeh,Narakorn Srinil +1 more
TL;DR: In this paper, a phenomenological model and analytical-numerical approach to systematically characterize variable hydrodynamic coefficients and maximum achievable responses in two-dimensional vortex-induced vibrations with dual two-to-one resonances are presented.
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References
Response characteristics of a vortex-excited cylinder at low reynolds numbers
P. Anagnostopoulos,P.W. Bearman +1 more
TL;DR: In this paper, an experimental investigation has been conducted into vortex-induced, cross-flow oscillations of a circular cylinder mounted elastically in a water channel, and traces of cylinder motion were taken in and around resonant conditions.
Fluid Forces on Oscillating Cylinders
TL;DR: In this article, an experimental and analytical investigation of the forced oscillations of a circular cylinder in uniform flow is presented, where the transverse force has been decomposed into two components and the appropriate force-transfer coefficients have been determined experimentally through the use of a Fourier averaging techinique.
Hydrodynamic damping. flow-induced oscillations, and biharmonic response
TL;DR: In this article, the significance of two-dimensional or biharmonic oscillations (in both the in-line and transverse directions) is discussed in light of experiments undertaken for that purpose, to simulate more closely the true nature of flow-induced oscillations.
Employing controlled vibrations to predict fluid forces on a cylinder undergoing vortex-induced vibration
TL;DR: In this article, the authors measured the fluid forces on a vertical cylinder that is forced to vibrate transversely to a water channel flow, and compared directly to the forces encountered by freely vibrating cylinders, under conditions where they carefully matched the amplitude, frequency, and Reynolds number (Re) of the two cases.
On the spanwise correlation of vortex shedding from a circular cylinder at high subcritical Reynolds number
TL;DR: In this article, the phase drift angle between two points at different spanwise positions was analyzed, showing that at the transition separation (Δz/d≊1) the probability distribution changed from being narrow banded to become more broad banded and closely Gaussian for an intermediate spacing of 2 <Δd/d<4, and almost uniform for Δz/D=6.