Optimization of the Hydrodynamic Performance of a Double-Vane Otter Board Based on Orthogonal Experiments
文献类型： 外文期刊
作者： Wang, Lei 1 ; Zhang, Xun 2 ; Wan, Rong 1 ; Xu, Qingchang 3 ; Qi, Guangrui 2 ;
作者机构： 1.Shanghai Ocean Univ, Coll Marine Sci, Shanghai 201306, Peoples R China
2.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst, Key Lab Ocean & Polar Fisheries, Minist Agr, Shanghai 200090, Peoples R China
3.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Key Lab Sustainable Dev Marine Fisheries, Minist Agr & Rural Affairs, Qingdao 266071, Peoples R China
关键词： otter board; hydrodynamic; wind tunnel; orthogonal experiment; trawl
期刊名称：JOURNAL OF MARINE SCIENCE AND ENGINEERING （ 影响因子：2.744； 五年影响因子：2.727 ）
ISSN：
年卷期： 2022 年 10 卷 9 期
页码：
收录情况： SCI
摘要： An orthogonal experiment was conducted to study the effects of the aspect ratio, camber of the fore wing, and gap ratio of front and rear wing panels on the hydrodynamic performance of double-vane otter boards. The design of the orthogonal experiment comprised three factors (each having three levels), namely the aspect ratio (1.0, 1.5, and 2.0), camber (0.12, 0.14, and 0.16), and gap ratio (0.25, 0.30, and 0.35), the drag coefficient C-x and the lift coefficient C-y of nine otter board models obtained in a wind tunnel experiment, and the lift-drag ratio K obtained by calculation. The lift-drag ratio for a working angle of attack of 30 degrees was selected as the inspection index, and the experimental data were analyzed in an orthogonal design-direct analysis. Analysis of each factor revealed that the optimal level combination of factors was A(3)B(3)C(3) and that the decreasing order of the effects of the factors was A (aspect ratio) > B (gap ratio) > C (camber). The orthogonal experiment thus obtained an optimal otter board in terms of the aspect ratio (2.0), fore wing camber (0.16), and gap ratio (0.35), with the aspect ratio having the greatest effect on performance. The hydrodynamic performances of the otter board with the optimized structure and another otter board model were compared in numerical simulation, which verified the correctness of the analysis results. The experimental results provide a reference for the optimal design of the double-vane otter board.
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