Dual mass system for enhancing energy extraction from Vortex-Induced Vibrations of a circular cylinder

Xu-Xu, J.; Barrero-Gil, A.; Velázquez, A.

doi:10.1016/j.ijome.2016.08.002

Cited by 22 publications

(12 citation statements)

References 26 publications

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“…In general, despite differences in the mass and damping parameters, the cross-flow amplitude from the present study is reasonably comparable to that from aforementioned researchers. The galloping rate in the Nemes et al [11] and Xu-Xu et al [14] tests are, however, slightly higher than that in the current study. This might be caused by the differences in the massdamping ratios [14] or different experimental conditions [11].…”

Section: Fiv Response Of the Square Cross-sectioncontrasting

confidence: 88%

“…The galloping rate in the Nemes et al [11] and Xu-Xu et al [14] tests are, however, slightly higher than that in the current study. This might be caused by the differences in the massdamping ratios [14] or different experimental conditions [11]. Xu-Xu et al [14] reported that the slope of the galloping in the square cylinders varies depending on the mass ratio.…”

Section: Fiv Response Of the Square Cross-sectioncontrasting

confidence: 88%

“…The maximum amplitude in the diamond cylinder is 0.58D. The amplitude response from the square configuration in the current study is presented in Figure 2(b) along with the test results from Nemes et al [11] and Xu-Xu et al [14]. Figure 2(b) shows that the square cylinders in all studies clearly exhibit a galloping type of response.…”

Section: Fiv Response Of the Square Cross-sectionsupporting

confidence: 64%

“…This might be caused by the differences in the massdamping ratios [14] or different experimental conditions [11]. Xu-Xu et al [14] reported that the slope of the galloping in the square cylinders varies depending on the mass ratio. It is worth noting that for the velocity ranges tested in the current study, the maximum reduced amplitude is about 1.45D.…”

Section: Fiv Response Of the Square Cross-sectionmentioning

confidence: 99%

“…It is noted that in-water experiments on square cylinders (with low massdamping parameters) are much less in number than those performed in air. Nemes et al [11], Barrero and Fernandez [12], Zhao et al [13] and Xu-Xu et al [14] examined the influence of the flow incidence angle and mass ratio on the transverse response of square cylinders. They found that FIV of square cylinders was significantly affected by variations in the flow incidence angle.…”

Section: Introductionmentioning

confidence: 99%

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FIV Energy Harvesting from Sharp Edge Square and Diamond Oscillators

Tamimi

Seif

Shahvaghar-Asl

et al. 2019

ijmt

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The horizontal kinetic energy of the fluid flow, from on-land wind to ocean tidal stream, is one of the most promising sources of the energy. In the field of renewable energies, power extraction from Flow Induced Vibration (FIV) of bluff bodies is a fast growing research area which has seen a great advancement over the last decade. In this study, the FIV energy harvesting potential of a sharp edge square cylinder in two different flow incidences is investigated. The square cylinder, depending on its orientation with respect to the incident flow, demonstrates VIV or galloping types of responses. The results indicate that the square cylinder with a flat side perpendicular to the flow has a galloping type of response. In contrast, the same cylinder with a sharp vertex pointing the flow (diamond configuration) shows a VIV type of response. The hydroelastic efficiency of the resonating square cylinder is significantly higher than that with the galloping type of response. This shows the great advantages of diamond VIV excavators over square galloping harvesters.

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Section: Fiv Response Of the Square Cross-sectioncontrasting

confidence: 88%