Effect of Aspect Ratio and The Maximum Relative Camber on Hydrodynamic Performance of A Vertical Double-Curved Otter Board

4th International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Rao, X.^1^2 ; Huang, H.L.^1^2 ; Li, L.Z.^1^2 ; Chen, S.^1^2 ; Yang, J.L.^1^2

Key Laboratory of Oceanic and Polar Fisheries, Ministry of Agriculture, East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai

200090, China^1

Engineering Technology Research Center of Marine Fishing, Chinese Academy of Fishery Sciences, Shanghai

200090, China^2

关键词: Antarctic krill;    Design and optimization;    Fishing gears;    Flume models;    Horizontal expansion;    Hydrodynamic performance;    Upward trend;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/237/3/032115/pdf
DOI  :  10.1088/1755-1315/237/3/032115

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

As an important accessory of Antarctic krill fishing gear, otter board has the effect of providing net horizontal expansion. To study the effects of aspect ratio and maximum relative camber on the hydrodynamic performance of Antarctic krill otter board, provide theoretical basis for the design and optimization of the otter board, the hydrodynamic performance parameters were analysed by flume model experiments. The results show: With the increase of aspect ratio, Clmax and Kmax show an upward trend; when the maximum relative camber is less than or equal to 10%, the value of ∝0 fluctuates around 20°. When the maximum relative camber is greater than 10%, ∝0 decreases gradually in the range of 32.5° to 22.5°; K ∝0 increases firstly and then decreases. With the increase of maximum relative camber, Clmax shows an upward trend; Kmax shows a downward trend; when the aspect ratio is less than or equal to 2.0, ∝0 shows an upward trend in the range of 20° to 32.5°, and when the aspect ratio is greater than 2.0, the value shows a fluctuating trend around 20°. K ∝0 fluctuates and there is no obvious principle.