Numerical and experimental study on absorber-type wave energy converters concentrically arranged on an octagonal platform

He, Guanghua; Luan, Zhengxiao; Jin, Ruijia; Zhang, Wei; Wang, Wei; Zhang, Zhigang; Jing, Penglin; Liu, Pengfei

doi:10.1016/j.renene.2022.02.045

Cited by 24 publications

(3 citation statements)

References 36 publications

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“…In addition, multi-chamber OWCs are anticipated to be constructed to fully harness the local wave power and produce large quantities of energy [70,71]. A hypothesis was developed by [72] to estimate the efficacy of multiple OWCs in a given depth reflecting wall.…”

Section: Hydrodynamics Of Owcmentioning

confidence: 99%

“…The impact of the frequency ratio-that is, the ratio of the device's natural frequency to the wave frequency-on the operation of a moored OWC device was examined by [79]. [71] utilized a CFD tool to study the effect of connection type and the angle between the float arm and the float in an octagonal truss-type structure integrated with multiple WECs. The array of cylinder OWC was modeled by [80] using a second-order time-domain higher-order boundary element method (BEM) (see Figure 11).…”

Section: Hydrodynamics Of Owcmentioning

confidence: 99%

See 1 more Smart Citation

Wave Energy Conversion through Oscillating Water Columns: A Review

Gayathri,

Chang,

Tsai

et al. 2024

JMSE

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An oscillating water column (OWC) is designed for the extraction and conversion of wave energy into usable electrical power, rather than being a standalone renewable energy source. This review paper presents a comprehensive analysis of the mathematical modeling approaches employed in OWC systems, aiming to provide an in-depth understanding of the underlying principles and challenges associated with this innovative technology. A prominent classification within the realm of wave energy devices comprises OWC systems, which exhibit either fixed or floating configurations. OWC devices constitute a significant proportion of the wave energy converter prototypes currently operational offshore. Within an OWC system, a hollow structure, either permanently fixed or floating, extends below the water’s surface, creating an enclosed chamber where air is captured over the submerged inner free surface. This comprehensive study offers a thorough assessment of OWC technology in conjunction with air turbines. Additionally, the investigation delves into theoretical, computational, and experimental modeling techniques employed for analyzing OWC converters. Moreover, this review scrutinizes theoretical, computational, and experimental modeling methodologies, providing a holistic understanding of OWC converters. Ultimately, this work contributes a thorough assessment of OWC technology’s current state, accentuating its potential for efficient wave energy extraction and suggesting future research avenues.

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Section: Hydrodynamics Of Owcmentioning

confidence: 99%

Section: Hydrodynamics Of Owcmentioning

confidence: 99%

Wave Energy Conversion through Oscillating Water Columns: A Review

Gayathri,

Chang,

Tsai

et al. 2024

JMSE

View full text Add to dashboard Cite

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“…He et al established a numerical model to investigate multi-body hydrodynamic interaction between an octagonal platform and absorber-type wave energy converters and selected a final design. They demonstrated that the multi-body interaction has a remarkable influence on the absorption power [19].…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of Multi-Floater Truss-Type Wave Energy Convertor Platform

Jin

Wang²,

Chen³

et al. 2022

Energies

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In order to solve the hydrodynamic characteristics of the multi-floater truss-type wave energy convertor (WEC) platform, the mathematical model is established by using the high-order boundary element method based on potential flow theory, in which the floater and the platform are connected by the floating arm based on the lever principle. The mathematical model is applied to study the heave motion response of each floater of the multi-floater truss-type WEC platform, and the effects of the floater number and the floater arrangement on the motion responses of floaters, as well as the power generation of the WEC platform are analyzed. The effect of the hydraulic cylinder on the floater is simulated by linear damping, and then, the work of the hydraulic cylinder is used to generate electricity, so as to achieve the purpose of simulating the multi-floater WEC power generation device. Some useful conclusions are obtained through calculation, which can provide data support for the corresponding platform.

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