A review of recent studies on the control of vortex-induced vibration of circular cylinders

Zhao, Ming

doi:10.1016/j.oceaneng.2023.115389

Cited by 44 publications

(3 citation statements)

References 132 publications

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“…In the research of flow control, the splitter plate has been introduced as an easier-to-implement flow control technique, requiring no additional power inputs. It has proven highly effective in suppressing vortex formation [16]. In our series of visualization experiments, we observed that splitter plates could stabilize the vortex within the nearwake region, delay the interaction between the upper and lower shear layers, and effectively alter and suppress vortex shedding in our research on flow over a bluff body [17].…”

Section: Introductionmentioning

confidence: 65%

Numerical Investigation of the Influence of a Splitter Plate on Mixing Transfer in the Ducts of a Rotary Energy Recovery Device

Liu,

et al. 2023

JMSE

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The rotary energy recovery device (RERD) is integral in reducing energy consumption in desalination processes. The absence of a physical piston in RERD ducts allows salinity transfer from the brine to the seawater stream, which reduces RERD efficiency. To address this challenge, this study investigates the potential of utilizing splitter plates as a flow control technique to decrease the mixing degree within RERDs. Numerical simulations were performed to examine five different splitter plate configurations in RERD ducts in order to identify optimal designs for reducing the mixing degree. The analysis of internal streamlines and vortex distributions revealed that horizontal splitter plates positioned at the duct inlet effectively suppressed swirling flows, while splitter plates positioned at the center of the duct suppressed the formation of flow-induced vortices. This resulted in a more uniform salinity distribution and a reduction in the mass transfer rate between brine and seawater streams. The most significant reduction in the volumetric mixing rate was observed when employing cross-spread splitter plates positioned at the center of the duct. This paper presents an innovative method to reduce the mixing degree in the RERD.

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Section: Introductionmentioning

confidence: 65%

Numerical Investigation of the Influence of a Splitter Plate on Mixing Transfer in the Ducts of a Rotary Energy Recovery Device

Liu,

et al. 2023

JMSE

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“…In the examples described, flow-induced vibrations can lead to structural damage, [13,51,62], primarily through fatigue, often causing failures at anchoring and attachment points, and in some cases, structures may resonate, resulting in catastrophic damage. Hence, it is imperative to employ measures aimed at mitigating the adverse effects of VIV [20,37,63] On the other hand, research is being conducted on devices that minimize these vibrations [49,65] and, more importantly, harness FIV to generate electrical energy. Examples include the VIVACE (Vortex-Induced Vibrations for Aquatic Clean Energy) by Bernitsas et al [4], capable of producing electricity from structural vibrations induced by water currents, and the vortice bladeless wind turbines [15,17], equipped with specific linear electric generators that convert structural vibrations caused by the wind into electrical energy.…”

Section: Introductionmentioning

confidence: 99%

Coupling of the immersed boundary and Fourier pseudo-spectral methods applied to solve fluid–structure interaction problems

Nascimento,

Mariano,

da Silveira Neto

et al. 2024

J Braz. Soc. Mech. Sci. Eng.

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The current manuscript addresses fluid–structure interaction (FSI) problems to the analysis of vortex-induced vibration (VIV), employing the methodology designated as IMERSPEC2D. The approach seamlessly integrates the Fourier pseudo-spectral method (FPSM) and the immersed boundary method (IBM) to solve the Navier–Stokes (NS) and continuity equations. Simultaneously, the effects of cylindrical structure, involving 1 and 2 degrees of freedom (d.o.f.) are simulated, by incorporating structural motion equations into NS via the IBM source term and implementing a two-way FSI algorithm. In the paper are presented the comparison of low and high-order temporal integration methods applied to solve the dynamic behavior of the structure and the dimensionless of the cylinder’s structural motion equations, resulting in an increase in computational time step from 1E($$-9$$ - 9 ) to 1E($$-3$$ - 3 ). Validation results to refined mesh simulations include the accurate representation of the lock-in phenomenon to simulations of 1 d.o.f. obtaining the range between reduced velocity 5.456 and 5.568 and the maximal amplitude is 0.352. Notably, the eight-shape pattern of the 2 d.o.f. cylinder displacement is obtained and the formation of C2S wake patterns is achieved, as presented by other authors. In conclusion, the dimensionless approach reduces computational time, while the high-order both of IMERSPEC methodology and time advancement integration to FSI improve the results of the cylinder’s motion and alters distinct vortex shedding patterns in fluid dynamics.

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“…VIV refers to the oscillations induced in a structure due to the unsteady shedding of vortices in its wake [2], [3], a phenomenon that can lead to fatigue and potential structural failure [4], [5]. To address this challenge, engineers and researchers have explored various strategies for mitigating VIV, and one such promising avenue is the use of passive control techniques [6]. Among these techniques, the incorporation of slits into cylindrical structures has emerged as a noteworthy and effective means of controlling vortex-induced vibrations [7].…”

Section: Introductionmentioning

confidence: 99%

Passive Vibration Reduction in Circular Cylinders: The Role of Slits

Ali,

Islam,

Janajreh

2024

Proceedings of the 9th World Congress on Momentum, Heat and Mass Transfer

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This work investigates a passive flow control method to mitigate vortex-induced vibration (VIV) by introducing a slit into a circular structure. The impact of varying slit sizes on the behaviour of a cylinder subjected to VIV is investigated across different reduced velocities (Ur) at a Reynolds number (Re) of 100. The size of the slit (S/D) is adjusted from 0 (without slit) to 0.1 & 0.2, where S corresponds to the width of slit & D the cylinder diameter. The mass and damping ratios are fixed at m* = 10 and ζ = 0.005, respectively, while Ur is varied from 2 to 10. The numerical analysis is conducted using Ansys/Fluent, incorporating mesh motion to consider cylinder vibration. The outcomes are presented in terms of vibration amplitude & frequency, drag & lift coefficients, Strouhal number, and vorticity contours. The findings suggest that the slit reduces lift and drag coefficients, effectively suppressing VIV. Examining maximum vibration amplitude, a 10% slit results in a 5.16% decrease, whereas a 20% slit leads to a substantial 34.27% reduction compared to a solid cylinder.

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A review of recent studies on the control of vortex-induced vibration of circular cylinders

Cited by 44 publications

References 132 publications

Numerical Investigation of the Influence of a Splitter Plate on Mixing Transfer in the Ducts of a Rotary Energy Recovery Device

Numerical Investigation of the Influence of a Splitter Plate on Mixing Transfer in the Ducts of a Rotary Energy Recovery Device

Coupling of the immersed boundary and Fourier pseudo-spectral methods applied to solve fluid–structure interaction problems

Passive Vibration Reduction in Circular Cylinders: The Role of Slits

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