Experimental study on the effect of waves on netting panels at a range of angles to the wave direction

The effect of horizontal waves on flexible netting panels placed at angles to the wave direction is studied with the aim of evaluating the testing method of pre-tensioned mooring and radial systems and flexible netting structures. The netting was hung on a frame at a specific hanging ratio for ten t...

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Bibliographic Details
Published in:Fisheries science 2012-05, Vol.78 (3), p.491-501
Main Authors: Song, Wei-hua, Liang, Zhen-lin, Wan, Rong, Zhao, Fen-Fang, Takeshi, Kinoshita, Huang, Liu-yi, Ma, Jia-zhi, Chen, Bo-hai
Format: Article
Language:English
Subjects:
Biomedical and Life Sciences
Dimensional analysis
Estimating techniques
Experiments
Fish & Wildlife Biology & Management
Fisheries
Fishery sciences
Fluid mechanics
Food Science
Freshwater & Marine Ecology
Life Sciences
Original Article
Regression analysis
Research methodology
Reynolds number
Studies
Velocity
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Summary:The effect of horizontal waves on flexible netting panels placed at angles to the wave direction is studied with the aim of evaluating the testing method of pre-tensioned mooring and radial systems and flexible netting structures. The netting was hung on a frame at a specific hanging ratio for ten types of polyethylene panels. Regular waves were experimentally generated with a wave period varying from 0.8 to 2.0 s and wave height ranging from 50 to 250 mm. The force on the netting structure was recorded by a tension transducer and a digital signal recorder. The results showed that the horizontal wave force on the netting panel changed periodically and asymmetrically when it was back and left or right declinate to the wave direction; similar results were found for the surface wave elevation. The opposite results were obtained when the sloping angle declinated front to the wave direction, with two obvious crests during each period. The horizontal wave force was related to the height and width of the netting panel, wave height, wave length, twine diameter, bar length of the mesh, and sloping angle relative to the wave direction. Using dual series relations, the least square approximation, and multiple stepwise regression analysis, the formula for estimating the maximum value of the wave force on the netting was obtained.
ISSN:0919-9268
1444-2906
DOI:10.1007/s12562-012-0484-6