Theoretical and Experimental Study of A Coaxial Double-Buoy Wave Energy Converter

Li, Demin; Dong, Xiaochen; Shi, Hongda; Li, Yan-ni

doi:10.1007/s13344-021-0042-z

Cited by 4 publications

(2 citation statements)

References 25 publications

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“…As the water depth becomes shallower, waves will break again, and the above processes will occur multiple times until reaching the coast. Very gentle beaches, including those with muddy seabeds and fine sand seabeds, are very common, and the slope usually ranges from 1:100 to 1:1000 [1]. Research on multiple wave breaking calculation models has important practical significance in protecting the ecological environment, preventing coastal erosion, and repairing damaged coasts.…”

Section: Introductionmentioning

confidence: 99%

A Computation Model for Coast Wave Motions with Multiple Breakings

Bian,

Zou,

Yan

2024

JMSE

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This paper presents a computational model for coast wave motions with multiple wave breakings. In the Boussinesq model, the wave breaking judgment method is combined with the wave recovery judgment condition, which stops the wave breaking process when triggered. The energy dissipation of wave breaking is corrected, and the dissipation of wave energy is maintained at about 10% during the wave recovery stage, so that the dissipation caused by the residual turbulent motion of wave breaking and the increase in wave height caused by the shallowing of waves due to the water bottom slope are offset. By comparing the calculation results with the experimental results, it is proved that this model can be used to calculate multiple wave breakings. This model is applied to discuss the influence of wave incident angle and wave period on wave height and longshore current and gives the distribution characteristics of wave height and longshore current under multiple wave breakings.

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Section: Introductionmentioning

confidence: 99%

A Computation Model for Coast Wave Motions with Multiple Breakings

Bian,

Zou,

Yan

2024

JMSE

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“…Therefore, differences in draught lead to a relative vertical direction motion between the outer buoy and inner buoy, which drives the linear generator (installed in the upper end of inner buoy) to convert ocean wave energy into electrical energy [6]. More details about the motion characteristics of buoys in ocean waves and the operation principle of the offshore type of ocean wave energy converter can be found in previous studies [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

A Comparison of Ocean Wave Height Forecasting Methods for Ocean Wave Energy Conversion Systems

Guodong,

Zhongxian

2023

Water

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Ocean wave height plays an important role in the operation status of ocean wave energy conversion systems. In this paper, the future continuous ocean wave height within 2~3 s is forecasted by three methods, the autoregressive moving average model (ARMA) method, backpropagation (BP) neural network method, and radial basis function (RBF) neural network method. Then, the error between suggested forecast results and corresponding measured results are compared by the root mean square error (RMSE), mean absolute error (MAE), and correlation coefficient R. The comparison result indicates that the RBF neural network method is preferred to the other two methods, having the advantage of high accuracy. Lastly, the reasons for the errors of the three forecasting methods are analyzed. This study signifies that the RBF neural network method is beneficial to the operation control and efficiency improvement of ocean wave energy conversion systems.

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