文献类型： 外文期刊

作者： Lei Wang ¹ ; Lu Min Wang ¹ ; Wen Wen Yu ¹ ; Chun Lei Feng ¹ ; Jian Gao Shi ¹ ; Yong Li Liu ¹ ; Xun Zhang ¹ ;

作者机构： 1.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst, Shanghai 200090, Peoples R China

关键词： otter board;wind tunnel test;hydrodynamic performances

期刊名称：PROCEEDINGS OF THE 2016 INTERNATIONAL FORUM ON ENERGY, ENVIRONMENT AND SUSTAINABLE DEVELOPMENT (IFEESD)

ISSN： 2352-5401

年卷期： 2016 年 75 卷

页码：

收录情况： SCI

摘要： The effect of the deflector angular variation for single slotted cambered otter board on hydrodynamic performances was investigated by model wind tunnel test. Three otter board models with different deflector angle were designed for testing. The model test conducted in wind tunnel with the flow velocity at 28 m/s and the angle of attack a measured from 0 degrees to 70 degrees. Model experiment was conducted to obtain drag coefficients C-x, lift coefficient C-y, calculated lift to drag ratio C-y/C-x and give the relations curve of these value and angle of attack a. The result showed that the lift coefficient C-y of No.2 otter board model was higher, there was 1.875(alpha=25 degrees); the C-y/C-x of No.1 otter board with smaller deflector angle would be higher, there was 6.555(alpha=7.5 degrees), however, No.2 otter board model got the higher drag ratio (3.894) at the attack angle of highest lift coefficient. The results would offer reference for the structural optimization design of trawl otter board.