An experimental study of a rectangular floating breakwater with vertical plates as wave-dissipating components

He, Fulian; Li, Jindi; Pan, Jiapeng; Yuan, Zhiming

doi:10.1016/j.apor.2023.103497

Cited by 17 publications

(3 citation statements)

References 38 publications

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“…However, in recent years, floating breakwater research has concentrated on the upper floating body. Chao-yong He et al [9] studied the wave dissipation of a rectangular box-type floating breakwater, and the results showed that the relative width of the square box, the relative draft depth and the initial tension of the anchor chain had an impact on the wave dissipation performance of the box-type floating breakwater. Increasing B/L can effectively reduce the transmission coefficient and improve the effect of wave elimination.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Hydrodynamic Characteristics of Barge-Type Breakwaters under Different Mooring Methods

Cheng

Wang

2023

JMSE

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In this paper, a yacht project in Tingjiang Town, Mawei, Fujian, is suggested as an example of a barge type breakwater made out of scrap barges. The physical modelling of a two-dimensional flume wave test was carried out on a barge-type breakwater, focusing on the wave dissipation and anchor chain forces under two different mooring methods, the “crossed tilt” mooring and the “front and rear direct pull” mooring, with no change in the size of the breakwater. The test results show that the effect of wave elimination of the barge-type breakwater gradually decreases with the increase of wave elements under different mooring conditions, but the effect of wave elimination of the barge-type breakwater is significantly better under the “crossed tilt” mooring systems than under the “front and rear direct pull” mooring systems; the maximum tension of the anchor chain under the “inner eight” diagonal mooring method is significantly higher than that under the front and rear straight pulling mooring method. The maximum anchor chain tension under the “crossed tilt” mooring system is significantly greater than that under the fore and aft straight mooring method, while the average anchor chain tension does not change significantly under the two mooring methods.

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Section: Introductionmentioning

confidence: 99%

Experimental Study on Hydrodynamic Characteristics of Barge-Type Breakwaters under Different Mooring Methods

Cheng

Wang

2023

JMSE

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“…These improving measures tend to be classified into three main kinds: (1) Adding appendages. The box-type breakwaters are mostly investigated, Mani [5] fixed a row of pipes beneath a trapezoidal float; Kee [6] hanged triple vertical tensioned porous membranes beneath a floating pontoon; Huang et al [7] attached three rows of slotted barriers to the bottom of a floating box-type breakwater; Wu et al [8] attached double arc-shaped flexible membranes to a box-type breakwater; He et al [9] attached five rows of vertical plates with fabricated slots to a rectangular floating breakwater, etc. The purpose of adding appendages is mainly to improve wave energy dissipation.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on the hydrodynamic characteristics of a Bragg breakwater with triple vertical plates

Luo

Zou

et al. 2023

IOP Conf. Ser.: Mater. Sci. Eng.

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The hydrodynamic characteristics of a Bragg breakwater with triple vertical plates in monochromatic regular waves are experimentally studied. The two spacings between the every two adjacent plates are denoted by S 1 and S 2 respectively which are both wide enough for the necessary of Bragg reflection, and S 2 is equal or unequal to S 1. A series of experiments are carried out in the wave flume equipped with a piston-type wave generator, and the hydrodynamic performance are analysed with the variation of the spacing S 2, the plate draft d 1 and freeboard d 2, the wavelength L and the wave steepness H/L (H is the wave height). Special attention is paid to the effects of nonuniform spacings on the hydrodynamic performance and the characteristics of Bragg reflection. In addition, the comparisons between the fixed and the unrestrained positioning are also presented. The results show that the transmission coefficients of the two unequal spacings mostly are smaller than the two equal spacings, and the intensity and bandwidth of Bragg reflection are increased by the non-uniform spacings. Under the unrestrained positioning, the movements have no serious effects on the wave attenuation performances of the breakwater. Moreover, the trough of transmission coefficient occurs at the left of the primary Bragg reflection condition due to both of Bragg resonance and wave energy dissipation not just Bragg resonance.

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“…Jing‐Ping et al 12 experimentally studied the hydrodynamic characteristics of a Bragg breakwater with triple vertical plates in monochromatic regular waves. He et al 13 carried out an experimental study of a rectangular floating breakwater with vertical plates as wave‐dissipating components. Zhou et al 14 proposed a twin‐breakwater consisting of a pair of parallel parabolic pontoons, then studied the influences of gap width and connection method applied between the two pontoons with the potential flow theory of linear waves.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation study of wave dissipation performance of step‐type breakwaters

Jin,

Huang,

Deng

et al. 2023

Engineering Reports

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To improve the force endurance capacity of plate breakwaters, a step‐type plate breakwater was proposed. The performance of the step‐type breakwater was investigated by numerical simulation method. First, a two‐dimensional numerical regular wave tank was constructed using FLUENT software, and the effectiveness of the tank application was verified by comparing with theoretical value and test data. Then, the numerical tank was used to simulate various working conditions, and the variation rules of the breakwater transmission coefficient with wave height, period, perforation rate, relative plate width, wave steepness, and number of layers were obtained. Finally, the difference in the wave dissipation mechanism between the step‐type breakwater and the “”‐type breakwater was discussed. The results indicated that the transmission coefficient of the step‐type breakwater was small, which also proved to be good at dissipating long‐period waves. In general, the wave dissipation performance of the step‐type breakwater was better than that of the “”‐type breakwater. The research can provide some clues for the research and design of corresponding breakwaters.

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An experimental study of a rectangular floating breakwater with vertical plates as wave-dissipating components

Cited by 17 publications

References 38 publications

Experimental Study on Hydrodynamic Characteristics of Barge-Type Breakwaters under Different Mooring Methods

Experimental Study on Hydrodynamic Characteristics of Barge-Type Breakwaters under Different Mooring Methods

Experimental study on the hydrodynamic characteristics of a Bragg breakwater with triple vertical plates

Numerical simulation study of wave dissipation performance of step‐type breakwaters

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