Effects of installation position of fin-shaped rods on wind-induced vibration and energy harvesting of aeroelastic energy converter

Ding, Lin; Mao, Xiangxi; Yang, Lin; Yan, Bowen; Wang, Junlei; Zhang, Li

doi:10.1088/1361-665x/abd42b

Cited by 33 publications

(11 citation statements)

References 67 publications

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“…The flow-induced vibration constitutes the first step toward converting the hydrokinetic energy into mechanical energy. According to the underlying mechanisms, common FIV phenomena can be classified into galloping, 11,12 vortex-induced vibration (VIV), 13,14 flutter, 15,16 and buffeting. 17 I summarizes and compares the aerodynamic response characteristics of VIV, galloping, and flutter in detail.…”

Section: A Fluid-structure Interactionmentioning

confidence: 99%

Perspectives in flow-induced vibration energy harvesting

Wang

Yurchenko

et al. 2021

Applied Physics Letters

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Flow-induced vibration (FIV) energy harvesting has attracted extensive research interest in the past two decades. Remarkable research achievements and contributions from different aspects are briefly overviewed. Example applications of FIV energy harvesting techniques in the development of Internet of Things are mentioned. The challenges and difficulties in this field are summarized from two sides. First, the multi-physics coupling problem in FIV energy harvesting still cannot be well handled. There is a lack of system-level theoretical modeling that can accurately account for fluid-structure interaction, the electromechanical coupling, and complicated interface circuits. Second, the robustness of FIV energy harvesters needs to be further improved to adapt to the uncertainties in practical scenarios. To be more specific, the cut-in wind speed is expected to be further reduced and the power output to be increased. Finally, Perspectives on the future development in this direction are discussed. Machine-learning approaches, the versatility of metamaterials, and more advanced interface circuits should receive more attention from researchers, since these cutting-edge techniques may have the potential to address the multi-physics modeling problem of FIV energy harvesters and significantly improve the operation performance. In addition, in-depth collaborations between researchers from different disciplines are anticipated to promote the FIV energy harvesting technology to step out of the lab and into real applications.

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Section: A Fluid-structure Interactionmentioning

confidence: 99%

Perspectives in flow-induced vibration energy harvesting

Wang

Yurchenko

et al. 2021

Applied Physics Letters

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“…The partition or splitter plate is a fine rigid plate arranged parallelly to the flow. Numerous experimental and numerical studies can be found where the detached flat plate is applied as a control instrument by varying its position or length (Aabid et al, 2019;Ali et al, 2012;Anderson et al, 1997;Apelt et al, 1973Apelt et al, , 1975Bruneau et al, 2014;Dehkordi et al, 2011;Ding et al, 2021;Doolan, 2009;Hassanzadeh Saraei et al, 2021;S. Ul Islam et al, 2015;Shams Ul Islam et al, 2014;Liu et al, 2016;Maruai et al, 2018;Mat Ali et al, 2011;Nidhul et al, 2015;Ozono, 1999;Park et al, 2013;Rashidi et al, 2016;Roshko, 1954;Sakamoto et al, 1997;Turki, 2008;Zhou et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Effect of a Detached Bi-Partition on the Drag Reduction for Flow Past a Square Cylinder

Admi

Channouf

Lahmer

et al. 2022

Int. J. Renew. Energy Dev.

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The objective of this research is to study the fluid flow control allowing the reduction of aerodynamic drag around a square cylinder using two parallel partitions placed downstream of the cylinder using the lattice Boltzmann method with multiple relaxation times (MRT-LBM). In contrast to several existing investigations in the literature that study either the effect of position or the effect of length of a single horizontal or vertical plate, this work presents a numerical study on the effect of Reynolds number (Re), horizontal position (g), vertical position (a), and length (Lp) of the two control partitions. Therefore, this work will be considered as an assembly of several results presented in a single work. Indeed, the Reynolds numbers are selected from 20 to 300, the gap spacing (0 ≤ g ≤ 13), the vertical positions (0 ≤ a ≤ 0.8d), and the lengths of partitions (1d ≤ Lp ≤ 5d). To identify the different changes appearing in the flow and forces, we have conducted in this study a detailed analysis of velocity contours, lift and drag coefficients, and the root-mean-square value of the lift coefficient. The obtained results revealed three different flow regimes as the gap spacing was varied. Namely, the extended body regime for 0 ≤ g ≤ 3.9, the attachment flow regime for 4 ≤ g ≤ 5.5, and the completely developed flow regime for 6 ≤ g ≤ 13. A maximal percentage reduction in drag coefficient equal to 12.5%, is given at the critical gap spacing (gcr = 3.9). Also, at the length of the critical partition (Lpcr = 3d), a Cd reduction percentage of 12.95% was found in comparison with the case without control. Moreover, the position of the optimal partition was found to be equal to 0.8d i.e. one is placed on the top edge of the square cylinder and the second one is placed on the bottom edge. The maximum value of the lift coefficient is reached for a plate length Lp = 2d when the plates are placed at a distance g = 4. On the other hand, this coefficient has almost the same mean value for all spacings between the two plates. Similarly, the root means the square value of the lift coefficient (Clrms) admits zero values for low Reynolds numbers and then increases slightly until it reaches its maximum for Re = 300.

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“…For the ambient environment, there are various renewable energy technologies [5], such as solar energy [6][7][8], wind energy [9][10][11], and vibration energy [12][13][14][15][16]. Ocean wave energy exists at the surface of the ocean in the form of kinetic and potential energy.…”

Section: Introductionmentioning

confidence: 99%

A wave energy converter based on a zero-pressure-angle mechanism for self-powered applications in near-zero energy sea-crossing bridges

Jia¹,

Cao²,

Pan³

et al. 2022

Smart Mater. Struct.

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The concept of near-zero energy conversion from ocean waves is an emerging topic that can be applied to supply power to self-powered applications in sea-crossing bridges. In this paper, a point-absorbing wave energy converter (WEC) with a novel zero-pressure-angle mechanism structure was proposed and investigated. The system includes a wave energy capture module, power take-off module (PTO), generator module, and energy storage module. The proposed PTO structure consists of a pair of guide rods, zero-pressure-angle rockers, gearbox, and flywheel, which convert the oscillation of the buoy into unidirectional continuous rotation of the generator, and electricity is stored in the supercapacitor. For accurate prediction, kinematic and dynamic approaches were employed for the non-constant damping PTO. The Mechanical Test and Sensing system (MTS) experiments achieved the highest mechanical efficiency of 81.87%, the maximum output power of 5.49 W, and the 53.44% average efficiency. It was found that the PTO with a flywheel can effectively improve the output performance compared to without a flywheel. In addition, the experiments of the actual WEC were performed and recorded an output power ranging from 0.964W to 3.218W, proving that the proposed structure meets the power requirements for self-powered sea-crossing bridge applications.

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Effects of installation position of fin-shaped rods on wind-induced vibration and energy harvesting of aeroelastic energy converter

Cited by 33 publications

References 67 publications

Perspectives in flow-induced vibration energy harvesting

Perspectives in flow-induced vibration energy harvesting

Effect of a Detached Bi-Partition on the Drag Reduction for Flow Past a Square Cylinder

A wave energy converter based on a zero-pressure-angle mechanism for self-powered applications in near-zero energy sea-crossing bridges

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