On the maximum amplitude for a freely vibrating cylinder in cross-flow

Klamo, Joseph T.; Leonard, Anthony; Roshko, A.

doi:10.1016/j.jfluidstructs.2005.07.010

Cited by 59 publications

(39 citation statements)

References 6 publications

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“…The key points from this analysis are repeated here because they not only provide great insight into the VIV problem but also help explain the strong Reynolds number dependence that Govardhan & Williamson (2006) and Klamo et al (2005) discovered and will be shown to exist with flexible cylinder data later on in this paper.…”

Section: Effect Of Reynolds Number On the Response Of Rigid Cylindersmentioning

confidence: 93%

“…Recently, independent studies by Govardhan and Williamson (2006) and Klamo et al (2005) have shown that the Reynolds number is extremely important when analyzing the response amplitude of rigid cylinders undergoing VIV in laboratory experiments. Both studies demonstrate that the mass ratio does not influence the peak response amplitude whereas there is a strong dependence on the Reynolds number -with the peak response amplitude increasing as the Reynolds number is increased.…”

Section: ܴ݁ = ܷ ‫ܦ‬ ‫ݒ‬mentioning

confidence: 99%

“…The aim of this paper is to reveal the trends that exist between the Reynolds number and some of the most important VIV response parameters (Strouhal number, cross-flow (CF) & inline (IL) amplitudes and drag coefficient (C d )). Govardhan & Williamson (2006) and Klamo et al (2005) independently showed that the Reynolds number influences the peak response of a rigid cylinder free to vibrate in a crossflow. After accounting for the Reynolds number dependence both Williamson and Klamo were able to show excellent correlation between peak response amplitudes with their respective damping parameters.…”

Section: ܴ݁ = ܷ ‫ܦ‬ ‫ݒ‬mentioning

confidence: 99%

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Reynolds Number Effects on the Vortex-Induced Vibration of Flexible Marine Risers

Resvanis

Jhingran

Vandiver

et al. 2012

Volume 5: Ocean Engineering; CFD and VIV

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This paper explores the Reynolds number dependence of the Vortex-Induced Vibration (VIV) of flexible marine risers. Emphasis is placed on revealing the trends that exist between the Strouhal number and the Reynolds number and between the dimensionless amplitude (A/D) and Reynolds number. Data is drawn from recent towing tank experiments which used flexible cylinders of three different diameters. The 38m long pipes were exposed to uniform and sheared currents. The Reynolds number range extended from approximately 5,000 to 220,000 -well into the critical regime-with the larger diameter pipes responding in up to the 13 th mode and the smaller diameter pipe responding well above the 20 th mode. The results and trends from this set of experiments are compared to previous results from laboratory and field experiments. INTRODUCTIONThe Reynolds number, Re, is a very important dimensionless parameter in most fluid dynamics problems including VIV.

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Section: Effect Of Reynolds Number On the Response Of Rigid Cylindersmentioning

confidence: 93%

Section: ܴ݁ = ܷ ‫ܦ‬ ‫ݒ‬mentioning

confidence: 99%

Section: ܴ݁ = ܷ ‫ܦ‬ ‫ݒ‬mentioning

confidence: 99%

See 1 more Smart Citation

Reynolds Number Effects on the Vortex-Induced Vibration of Flexible Marine Risers

Resvanis

Jhingran

Vandiver

et al. 2012

Volume 5: Ocean Engineering; CFD and VIV

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“…The studies regarding vortex induced vibrations of circular cylinders is very wide-ranging, and new conceptions are developed ceaselessly by using experiments (Klamo et al 2005, Carberry 2001, Raghavan and Bernitsas 2011, Kim and Bernitsas 2016, field tests (Sumer and Fredsoe 1997), and numerical simulations (Williamson and Govardhan 2004, Juan et al 2015, Ding et al 2016, Kinaci et al 2016aand b, Steven et al 2016, Chung 2016, Jiang et al 2016. Vortex-induced vibrations are highly nonlinear phenomena.…”

Section: Introductionmentioning

confidence: 99%

URANS-Based Prediction of Vortex Induced Vibrations of Circular Cylinders

Dobrucali

Kınacı

2017

JAFM

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Vortex induced vibrations (VIV) are highly nonlinear due to three different frequencies involved in the process; fluid force frequency, vortex shedding frequency and oscillation frequency. It is computationally complex to solve such a chaotic fluid flow but recent progress in numerical algorithms, turbulence models and computer capabilities have made it easier to approach the problem with a nonlinear approach. These developments have paved the way to approach the problem with the simple equation of motion of Newton's law and when coupled with URANS, which is a commonly used method in solving problems related to fluid flow, the highly nonlinear problem of vortex induced vibrations become solvable. The existing literature computationally can only handle flows for > 10,000 − 12,000 but the numerical methodology adopted in this study furthers this limitation. The numerical algorithm is first tried for a stationary cylinder and the boundary layer separation is investigated for higher . The generated results are found to be satisfactory to proceed solving for VIV at high . The solution strategy is tested in a wide range of Reynolds number with different springs and damping coefficients. Satisfactory agreement is found with the experiments for a cylinder in VIV. The shortcomings of the computational work and why these limitations arise are tried to be explained using the experimental results and the existing mathematical models.

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“…In this work, the cylinder is mounted by the spring as the canonical issue that could be used to create comparison between the suggested alternatives * and * with the performance of variables of mass damping, studied by Govardhan and Williamson (2006) [4], Khalak and Williamson (1999) [5] and Klamo et al (2005) [6].…”

Section: Introductionmentioning

confidence: 99%