Numerical study on the suppression of the vortex-induced vibration of an elastically mounted cylinder by a traveling wave wall

Xu, Feng; Chen, Wen Li; Xiao, Yingying; Li, Hui; Ou, Jinping

doi:10.1016/j.jfluidstructs.2013.10.005

Cited by 62 publications

(21 citation statements)

References 20 publications

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“…These observations follow the same trends as those documented by Bradner et al [15], indicating that the proposed mass-spring-damper system has a good capability to capture the general dynamic characteristics of the bridge deck-wave interaction problems. This system may be further adopted for other near shore and offshore structures, such as elastically mounted cylinder in a flowing fluid domain [36]. In summary, a close match between the generated solitary waves and the prescribed ones demonstrated above is a premise for a reliable prediction of the wave forces.…”

Section: Verification Of the Mass-spring-damper Systemmentioning

confidence: 81%

Numerical simulations of lateral restraining stiffness effect on bridge deck–wave interaction under solitary waves

Cai

2015

Engineering Structures

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Section: Verification Of the Mass-spring-damper Systemmentioning

confidence: 81%

Numerical simulations of lateral restraining stiffness effect on bridge deck–wave interaction under solitary waves

Cai

2015

Engineering Structures

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“…The new position of cylinder is updated by solving the Equations (14) and (15). The Newmark-β method is used to solve the Equations (14) and (15). The Newmark-β method is an implicit time integration method [25].…”

Section: Numerical Approachmentioning

confidence: 99%

“…Zhu and Yao [13] presented a method of VIV suppression using small control rods, and results showed that the suppression effect was the best when the number of control rods was 9. The suppression effect of traveling wave wall (TWW) on VIV was studied numerically by Xu et al [14], and a small vortex shedding was observed. A circular cylinder attached with helical strakes on VIV suppression was numerically investigated [15], and it could be found that helical strake could change vibration frequency and suppress the vortex shedding.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation on Vortex-Induced Vibration Suppression of a Circular Cylinder with Axial-Slats

Wang

Mao

Tian

et al. 2019

JMSE

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The vortex-induced vibration (VIV) suppression of a circular cylinder with the axial-slats is numerically investigated using the computational fluid dynamics (CFD) method for Reynolds number range of 8.0 × 10 3 -5.6 × 10 4 . The two-dimensional unsteady Reynolds averaged Navier-Stokes (RANS) equations and Shear-Stress-Transport (SST) turbulence model are used to calculate the flow around the cylinder in ANSYS Fluent. The Newmark-β method is used to evaluate structural dynamics. The amplitude response, frequency response and vortex pattern are discussed. The suppression effect of the axial-slats is the best when the gap ratio is 0.10 and the coverage ratio is 30%. Based on the VIV response, the whole VIV response region is divided into four regions (Region I, Region II, Region III and Region IV). The frequency ratio of isolated cylinder jumps between region II and region III. However, the frequency ratio jumps between region I and region II for a cylinder with the axial-slats. The axial-slats destroy the original vortex and make the vortex easier to separate. The online amplitude ratio is almost completely suppressed, and the cross-flow amplitude ratio is significantly suppressed. effect of different surface roughness on VIV suppression, and results showed that the amplitude response decreased and drag coefficient decreased as the roughness increases. Zhu and Yao [13] presented a method of VIV suppression using small control rods, and results showed that the suppression effect was the best when the number of control rods was 9. The suppression effect of traveling wave wall (TWW) on VIV was studied numerically by Xu et al. [14], and a small vortex shedding was observed. A circular cylinder attached with helical strakes on VIV suppression was numerically investigated [15], and it could be found that helical strake could change vibration frequency and suppress the vortex shedding. Huera-Huarte [16] investigated the suppression effect of wire meshes on VIV, and the maximum amplitude response could be reduced by 95%. Lou et al. [17] experimentally investigated the suppression effect of splitter plates, and it was found that the length ratio of splitter plate was an important factor on VIV suppression. Zheng and Wang [18] investigated the suppression effect of different shaped fairing devices on VIV. There are many researches on axial-rods [19][20][21], but there are few researches on axial-slats.In this study, the VIV response of a circular cylinder with the axial-slats is numerically investigated using the computational fluid dynamics (CFD) method for Reynolds number range of 8.0 × 10 3 < Re < 5.6 × 10 4 . The two-dimensional unsteady Reynolds averaged Navier-Stokes (RANS) equations in conjunction with the SST k-ω turbulence model are used to calculate the flow around the cylinder. The Newmark-β method is used to evaluate the structural dynamics. The physical model is established in Section 2, and the numerical model is established in Section 3. In Section 3, the numerical model is verified by experimental results. T...

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“…(a) drag reduction [5], (b) flow pressure fluctuation controlling [6], [7], (c) flow separation controlling [8]- [11], (d) transition controlling [12]- [14], (e) lift adjusting [15], [16], (f) noise suppression [17]- [19], and so on. Here, we mainly discuss the effective methods of controlling the coherent structure of the near wall turbulent boundary layer for reducing the skin frictional drag.…”

Section: Introductionmentioning

confidence: 99%

Active Control for Wall Drag Reduction: Methods, Mechanisms and Performance

2020

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Active reducing the skin friction drag of vehicles (such as missiles, rockets, aircraft, high-speed train, submarines, etc.) during the navigation process can improve the respond speed effectively, save the energy consumption and increase the endurance time. As lots of active drag reduction methods were proposed for different applications, a review article is urgently needed to guide researchers to choose suitable methods for their pre-research. In this review, the generation mechanisms of skin friction drag under the action of disturbing the turbulent boundary layer are discussed, and the main active drag reduction methods are summarized. According to the actuation modes, we divided the active drag reduction methods into: drag reduction based on wall motion; drag reduction based on volume force control; drag reduction based on wall deformation and drag reduction based on micro vibration generated by piezoelectric actuator. The development status, drag reduction mechanisms, typical structures and drag reduction performance of each active drag reduction method are discussed and summarized in this work, which can provide preliminary research references for those who are engaged in the research of active wall drag reduction. INDEX TERMS Drag reduction, active control methods, piezoelectric actuator, skin friction drag, turbulent boundary layer.

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Numerical study on the suppression of the vortex-induced vibration of an elastically mounted cylinder by a traveling wave wall

Cited by 62 publications

References 20 publications

Numerical simulations of lateral restraining stiffness effect on bridge deck–wave interaction under solitary waves

Numerical simulations of lateral restraining stiffness effect on bridge deck–wave interaction under solitary waves

Numerical Investigation on Vortex-Induced Vibration Suppression of a Circular Cylinder with Axial-Slats

Active Control for Wall Drag Reduction: Methods, Mechanisms and Performance

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