A numerical simulation of VIV on flexible circular cylinder

Fang Xie, Jian Deng, Qing Xiao, Yao Zheng

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

In this paper, numerical simulations of a flexible circular cylinder subjected to a Vortex-Induced Vibration (VIV) are conducted. The Reynolds number for simulations is fixed at 1000. The finite volume method is applied for modeling fluid flow with moving meshes feature. The dynamic response of a flexible cylinder fixed at both ends is modeled by the Euler-Bernoulli beam theory. The comparison between 2-D simulations and 3-D simulations for the flexible cylinder shows that the maximum response amplitude of the cross-flow oscillation is about 0.57D for 2-D rigid cylinders (modeled by a spring-damper-mass model) and 1.03D for flexible cylinder, respectively. The results from 3-D simulations are closer to previous experimental results. Furthermore, the results obtained with various frequency ratios show that different wake patterns exist according to the frequency ratio, such as 2S mode, 2P mode and some more complicated modes. The wake pattern is different at various sections along the cylinder length, due to the fact that two ends of the beam are fixed. The vibration of the flexible cylinder can also greatly alter the three-dimensionality in the wake, which is our research in future work, especially in the transition region for Reynolds number ranging from 170 to 300.
Original languageEnglish
Article number045508
JournalFluid Dynamics Research
Volume44
Issue number4
DOIs
Publication statusPublished - 2012

Fingerprint

circular cylinders
Circular cylinders
Vortex flow
vortices
vibration
Computer simulation
Reynolds number
wakes
simulation
Finite volume method
Dynamic response
Flow of fluids
Euler-Bernoulli beams
cross flow
finite volume method
dampers
dynamic response
fluid flow
mesh
oscillations

Keywords

  • 3D simulations
  • cross-flow oscillations
  • Euler Bernoulli beam theory
  • flexible cylinders
  • vortex-induced vibration

Cite this

Xie, Fang ; Deng, Jian ; Xiao, Qing ; Zheng, Yao. / A numerical simulation of VIV on flexible circular cylinder. In: Fluid Dynamics Research. 2012 ; Vol. 44, No. 4.
@article{326b46b1f4cb453eb811810c5204fd6a,
title = "A numerical simulation of VIV on flexible circular cylinder",
abstract = "In this paper, numerical simulations of a flexible circular cylinder subjected to a Vortex-Induced Vibration (VIV) are conducted. The Reynolds number for simulations is fixed at 1000. The finite volume method is applied for modeling fluid flow with moving meshes feature. The dynamic response of a flexible cylinder fixed at both ends is modeled by the Euler-Bernoulli beam theory. The comparison between 2-D simulations and 3-D simulations for the flexible cylinder shows that the maximum response amplitude of the cross-flow oscillation is about 0.57D for 2-D rigid cylinders (modeled by a spring-damper-mass model) and 1.03D for flexible cylinder, respectively. The results from 3-D simulations are closer to previous experimental results. Furthermore, the results obtained with various frequency ratios show that different wake patterns exist according to the frequency ratio, such as 2S mode, 2P mode and some more complicated modes. The wake pattern is different at various sections along the cylinder length, due to the fact that two ends of the beam are fixed. The vibration of the flexible cylinder can also greatly alter the three-dimensionality in the wake, which is our research in future work, especially in the transition region for Reynolds number ranging from 170 to 300.",
keywords = "3D simulations, cross-flow oscillations, Euler Bernoulli beam theory, flexible cylinders, vortex-induced vibration",
author = "Fang Xie and Jian Deng and Qing Xiao and Yao Zheng",
year = "2012",
doi = "10.1088/0169-5983/44/4/045508",
language = "English",
volume = "44",
journal = "Fluid Dynamics Research",
issn = "0169-5983",
number = "4",

}

A numerical simulation of VIV on flexible circular cylinder. / Xie, Fang ; Deng, Jian ; Xiao, Qing; Zheng, Yao.

In: Fluid Dynamics Research, Vol. 44, No. 4, 045508, 2012.

Research output: Contribution to journalArticle

TY - JOUR

T1 - A numerical simulation of VIV on flexible circular cylinder

AU - Xie, Fang

AU - Deng, Jian

AU - Xiao, Qing

AU - Zheng, Yao

PY - 2012

Y1 - 2012

N2 - In this paper, numerical simulations of a flexible circular cylinder subjected to a Vortex-Induced Vibration (VIV) are conducted. The Reynolds number for simulations is fixed at 1000. The finite volume method is applied for modeling fluid flow with moving meshes feature. The dynamic response of a flexible cylinder fixed at both ends is modeled by the Euler-Bernoulli beam theory. The comparison between 2-D simulations and 3-D simulations for the flexible cylinder shows that the maximum response amplitude of the cross-flow oscillation is about 0.57D for 2-D rigid cylinders (modeled by a spring-damper-mass model) and 1.03D for flexible cylinder, respectively. The results from 3-D simulations are closer to previous experimental results. Furthermore, the results obtained with various frequency ratios show that different wake patterns exist according to the frequency ratio, such as 2S mode, 2P mode and some more complicated modes. The wake pattern is different at various sections along the cylinder length, due to the fact that two ends of the beam are fixed. The vibration of the flexible cylinder can also greatly alter the three-dimensionality in the wake, which is our research in future work, especially in the transition region for Reynolds number ranging from 170 to 300.

AB - In this paper, numerical simulations of a flexible circular cylinder subjected to a Vortex-Induced Vibration (VIV) are conducted. The Reynolds number for simulations is fixed at 1000. The finite volume method is applied for modeling fluid flow with moving meshes feature. The dynamic response of a flexible cylinder fixed at both ends is modeled by the Euler-Bernoulli beam theory. The comparison between 2-D simulations and 3-D simulations for the flexible cylinder shows that the maximum response amplitude of the cross-flow oscillation is about 0.57D for 2-D rigid cylinders (modeled by a spring-damper-mass model) and 1.03D for flexible cylinder, respectively. The results from 3-D simulations are closer to previous experimental results. Furthermore, the results obtained with various frequency ratios show that different wake patterns exist according to the frequency ratio, such as 2S mode, 2P mode and some more complicated modes. The wake pattern is different at various sections along the cylinder length, due to the fact that two ends of the beam are fixed. The vibration of the flexible cylinder can also greatly alter the three-dimensionality in the wake, which is our research in future work, especially in the transition region for Reynolds number ranging from 170 to 300.

KW - 3D simulations

KW - cross-flow oscillations

KW - Euler Bernoulli beam theory

KW - flexible cylinders

KW - vortex-induced vibration

UR - http://iopscience.iop.org/1873-7005/

U2 - 10.1088/0169-5983/44/4/045508

DO - 10.1088/0169-5983/44/4/045508

M3 - Article

VL - 44

JO - Fluid Dynamics Research

JF - Fluid Dynamics Research

SN - 0169-5983

IS - 4

M1 - 045508

ER -