Dynamics of dual pontoon floating structure for cage aquaculture in a two-dimensional numerical wave tank

Tang, Hung-Jie; Huang, Chien‐Wei; Chen, Wei-Ming

doi:10.1016/j.jfluidstructs.2011.06.009

Cited by 60 publications

(22 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This type of floating breakwater could reduce current velocity. The performance of a floating breakwater with cage aquaculture was investigated by Tang et al (2011) who studied the influences the depth and the width of the net on the dynamic responses.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Investigation of Hydrodynamic Performance of a Sloping Floating Breakwater with and Without Chain-Net

Sohrabi

Lotfollahi-Yaghin

Aminfar

et al. 2021

Iran J Sci Technol Trans Civ Eng

View full text Add to dashboard Cite

A novel study of sloping floating breakwater (FB) that has a gap between two floaters is proposed. The slope of a structure can cause wave energy dissipation. A problem with sloping structures is wave overtopping. To solve this problem, a gap is considered between the two floaters. If overtopping occurs, water passing the crest will pour into the gap between the two floaters, as a result wave energy will be attenuated. A chain net is added to the model and its effect on the transmission coefficient is studied. Furthermore, in order to investigate the effects of the degree of freedom on the hydrodynamic performance of the structure, the model is studied in the two anchorage systems which are anchored by pile (1 degree of freedom) and anchored by mooring lines (3 degree of freedom). Moreover, the experiments are performed under regular waves with five different wave periods and four different wave heights. The results of the experiments show a sloping floating breakwater that has a better performance than that of rectangular box type by 15% as maximum value. The transmission coefficients for the FB anchored by pile are lower about 14% as maximum value than that of the FB anchored by cable in shorter waves and are higher about 4-10% in longer waves. With increasing the draft, the transmission coefficient decreases but the freeboard should meet the minimum requirements to restrict overtopping in the allowable rate. The model with a chain net exhibits a better performance as compared with the model without it by a maximum 14% reduction in the transmission coefficients.

show abstract

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Investigation of Hydrodynamic Performance of a Sloping Floating Breakwater with and Without Chain-Net

Sohrabi

Lotfollahi-Yaghin

Aminfar

et al. 2021

Iran J Sci Technol Trans Civ Eng

View full text Add to dashboard Cite

show abstract

“…Further, they suggested that this could be combined with porous structures in order to improve the functionality of the structure. (Tang et al, 2011) presented another dual pontoon floating structure, where the pontoons supported a fish net for aquaculture. In this case the fish net acts as a very open porous structure, which in (Wang and Sun, 2010) was found to increase the wave attenuation caused by energy dissipation.…”

Section: Introductionmentioning

confidence: 99%

An experimental and numerical study of floating breakwaters

Christensen¹,

Bingham²,

Friis³

et al. 2018

Coastal Engineering

View full text Add to dashboard Cite

 Users may download and print one copy of any publication from the public portal for the purpose of private study or research.  You may not further distribute the material or use it for any profit-making activity or commercial gain  You may freely distribute the URL identifying the publication in the public portal If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.

show abstract

“…They discovered that the proposed borad-net floating breakwater not only reduce transmitted wave heights, but reduce current velocity by 20%. Tang et al [16] performed hydrodynamic analysis as well as experimental tests to investigate another kind of floating breakwater with dual pontoon floating structure connected with a fish net for cage aquaculture. Mizutani and Rahman [17] introduced the rectangular-shaped porous floating breakwater which is moored by three different types of mooring systems, and experimentally studied the dynamic behaviors of the structure including the wave reflection, transmission, motion responses and mooring line forces.…”

Section: Introductionmentioning

confidence: 99%

Hydrodynamic performance of floating breakwaters in long wave regime: An experimental study

Cheng

Cui

et al. 2018

Ocean Engineering

View full text Add to dashboard Cite

Hydrodynamic behavior tests of long water waves with the floating breakwater is a important mission in some near-reef sea areas. Especially, the performance of the wave would be more complex when natural periods of the motion are defined within the range of wave frequencies. In this study, a series of experiments are conducted under long regular wave actions to investigate the hydrodynamic performance of four slack-moored floating breakwater models, which include single box, single porous box, double cylindrical pontoon and double cylindrical pontoon with mesh cage and suspending balls. The experimental results display that the wave transmission and wave energy dissipation for four models have multiple turning points produced near the natural periods of floating structures in long wave regime, while that is not evident for the reflection coefficient. The resonant responses are also observed in the motions and mooring tension of four models, which further explain the turning point phenomenon appeared in transmission and dissipation coefficient. The overall results reveal that the porous plates and mesh cage with balls is effective for mitigating the turning point phenomenon due to additional water mass and damping effects, and also holds the potential for reducing the motions and mooring forces, which validate the feasibility of the novel floating breakwaters.

show abstract

Dynamics of dual pontoon floating structure for cage aquaculture in a two-dimensional numerical wave tank

Cited by 60 publications

References 25 publications

Experimental and Numerical Investigation of Hydrodynamic Performance of a Sloping Floating Breakwater with and Without Chain-Net

Experimental and Numerical Investigation of Hydrodynamic Performance of a Sloping Floating Breakwater with and Without Chain-Net

An experimental and numerical study of floating breakwaters

Hydrodynamic performance of floating breakwaters in long wave regime: An experimental study

Contact Info

Product

Resources

About