Effect of bevel angle of three-layer parallel plate on hydrodynamic performances of otter-board

摘要：

　　The effect of bevel angle of three-layer parallel plate of otter-board on hydrodynamic performances is investigated by model wind tunnel test.Four otter-board models are designed with four different bevel angles(8°,10°,12° and 14°),and tested under the wind speed 28 m/s in wind tunnel.Model experiment is conducted to obtain the drag coefficients Cx,the lift coefficient Cy,the pitch moment coefficient Cm,the center of pressure coefficient Cp and calculated the lift-drag ratio Cy/Cx.The result shows that the maximum lift coefficient and the maximum lift-drag ratio of the otter-board model with a bevel angle 12 degree is higher,there is 2.598(α=65°)and 2.607(α=37.5°); For comparison in stability of otter-board,the stability of the otter-board model with the bevel angle 8 degree is better by the comparative analysis of Cm and Cp,the absolute value of Cm is 0.174 and the minimum variation coefficient of Cp is 4.37%.The results can offer reference for the structural optimization design of trawl otter-board.

作者: Lei WANG Lu Min WANG Yu ZHANG Ai Zhong ZHOU Yong Li LIU Wen Wen YU Xun ZHANG

作者单位: Key Laboratory of Oceanic and Polar Fisheries, Ministry of Agriculture;East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China

会议类型: 国际会议

会议名称: 2017 International Conference on Electronic Information Technology and Computer Engineering (EITCE 2017)(2017电子信息技术与计算机工程国际会议)(EITCE2017)

会议地点: 珠海

会议语种:英文

页码: 1-5

在线出版日期: 2017-09-23（万方平台首次上网日期，不代表论文的发表时间）