Vortex dynamics in the wake of a pivoted cylinder undergoing vortex-induced vibrations with elliptic trajectories
Sign Up to like & getrecommendations! Published in 2018 at "Experiments in Fluids"
DOI: 10.1007/s00348-018-2530-3
Abstract: Vortex-induced vibrations of a pivoted cylinder are investigated experimentally at a fixed Reynolds number of 3100, a mass ratio of 10.8, and a range of reduced velocities, $$4.42 \le U^* \le 9.05$$4.42≤U∗≤9.05. For these conditions,… read more here.
Keywords: vortex induced; vortex; topology; pivoted cylinder ... See more keywords
Vortex-induced vibration of a cylinder in pulsating nanofluid flow
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Thermal Analysis and Calorimetry"
DOI: 10.1007/s10973-019-08980-5
Abstract: In this paper, vortex-induced vibration of a circular cylinder with forced convection heat transfer and entropy generation in pulsating alumina–water nanofluid flow is investigated numerically. Numerical simulation is carried out for a constant mass ratio… read more here.
Keywords: nanofluid flow; vortex induced; cylinder; induced vibration ... See more keywords
Single-degree-of-freedom model of displacement in vortex-induced vibrations
Sign Up to like & getrecommendations! Published in 2021 at "Nonlinear Dynamics"
DOI: 10.1007/s11071-021-06209-5
Abstract: In contrast to the approach of coupling a nonlinear oscillator that represents the lift force with the cylinder’s equation of motion to predict the amplitude of vortex-induced vibrations, we propose and show that the displacement… read more here.
Keywords: force; vortex induced; model; induced vibrations ... See more keywords
Vortex-induced vibration of a cylinder with nonlinear energy sink (NES) at low Reynolds number
Sign Up to like & getrecommendations! Published in 2021 at "Nonlinear Dynamics"
DOI: 10.1007/s11071-021-06399-y
Abstract: Vortex-induced vibration (VIV) is a fluid structure interaction phenomena that can lead to the fatigue failure of high-rise structures. To study the basic principles and method of VIV suppression for a cylinder structure, a two-dimensional… read more here.
Keywords: induced vibration; cylinder; vibration; vortex induced ... See more keywords
Tension and drag forces of flexible risers undergoing vortex-induced vibration
Sign Up to like & getrecommendations! Published in 2017 at "China Ocean Engineering"
DOI: 10.1007/s13344-017-0001-x
Abstract: This paper presents the results of an experimental investigation on the variation in the tension and the distribution of drag force coefficients along flexible risers under vortex-induced vibration (VIV) in a uniform flow for Reynolds… read more here.
Keywords: flexible risers; risers undergoing; vortex induced; viv ... See more keywords
Research on the effects of in-line oscillatory flow on the vortex-induced motions of a deep draft semi-submersible in currents
Sign Up to like & getrecommendations! Published in 2017 at "China Ocean Engineering"
DOI: 10.1007/s13344-017-0032-3
Abstract: A Deep Draft Semi-submersible (DDS) under certain flow conditions could be subjected to Vortex-Induced Motions (VIM), which significantly influences the loads on and life fatigue of the moorings and the risers. To investigate the VIM… read more here.
Keywords: draft semi; vortex induced; oscillatory; flow ... See more keywords
Modelling of the Vortex-Induced Motion of A Single-Column Platform with Non-Linear Mooring Stiffness Using the Coupled Wake Oscillators
Sign Up to like & getrecommendations! Published in 2019 at "China Ocean Engineering"
DOI: 10.1007/s13344-019-0043-3
Abstract: A phenomenological model for predicting the vortex-induced motion (VIM) of a single-column platform with nonlinear stiffness has been proposed. The VIM model is based on the couple of the Duffing-van der Pol oscillators and the… read more here.
Keywords: non linear; vortex induced; induced motion; stiffness ... See more keywords
Numerical Investigation on Vortex-Induced Rotations of A Triangular Cylinder Using An Immersed Boundary Method
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DOI: 10.1007/s13344-019-0070-0
Abstract: A numerical study of vortex-induced rotations (VIRs) of an equivalent triangular cylinder, which is free to rotate in the azimuthal direction in a uniform flow, is presented. Based on an immersed boundary method, the numerical… read more here.
Keywords: vortex induced; induced rotations; rotation; cylinder ... See more keywords
Vortex-Induced Vibrations of A Free-Spanning Pipe Based on A Nonlinear Hysteretic Soil Model at the Shoulders
Sign Up to like & getrecommendations! Published in 2020 at "China Ocean Engineering"
DOI: 10.1007/s13344-020-0030-8
Abstract: The pipe-soil interactions at shoulders can significantly affect the vortex-induced vibrations (VIV) of free-spanning pipes in the subsea. In this paper, the seabed soil reacting force on the pipe is directly calculated with a nonlinear… read more here.
Keywords: vortex induced; model; seabed soil; soil ... See more keywords
An experiment study of vortex induced vibration of a steel catenary riser under steady current
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Hydrodynamics"
DOI: 10.1007/s42241-020-0067-4
Abstract: The vortex induced vibration (VIV) of marine risers has been investigated by many researchers in experimental studies of a straight flexible riser model as well as a rigid cylinder to reveal the dynamic response characteristic… read more here.
Keywords: steady current; vortex induced; steel catenary; catenary riser ... See more keywords
Artefacts of finite span in vortex-induced vibration simulations
Sign Up to like & getrecommendations! Published in 2020 at "Applied Ocean Research"
DOI: 10.1016/j.apor.2020.102265
Abstract: Abstract The effects of finite-span computational domain with periodic boundaries for vortex-induced vibration simulations are investigated. Coupled fluid-solid dynamics of an elastically-mounted rigid circular cylinder are performed using detached eddy simulations with four computational domains… read more here.
Keywords: induced vibration; artefacts finite; vortex induced; finite span ... See more keywords