Effect of deflector angle on hydrodynamic performances of a doubleslotted cambered otter-board

摘要：

　　The effect of deflector angle on hydrodynamic performances of a double-slotted cambered otter-board is investigated using engineering models in a wind tunnel.Three different angle combinations(35°-30°,30°-25°and 25°-20°)are evaluated at a wind speed of 28 m/s.Parameters measured included: drag coefficient Cx,lift coefficient Cy,pitch moment coefficient Cm,center of pressure coefficient Cp,over a range of angle of attack(0° to 70°).These coefficients are used in analyzing the differences in the performance among the three otter-board models.Results shows that the maximum lift coefficient Cy of the otter-board model with the angle combination(35°-30°)of two deflectors is the highest(2.160 atα=55°).The maximum Cy/Cx of the otter-board with the angle combination(25°-20°)is the highest(3.842 atα=2.5°).A comparative analysis of Cm and Cp shows that the stability of otter-board model with the angle combination(25°-20°)is better in pitch,and the stability of otter-board model with the angle combination(30°-25°)is better in roll.The findings of this study can offer useful reference data for the structural optimization of otter-boards for trawling.

作者: Lei WANG Lu Min WANG Jian Gao SHI Yu ZHANG 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: 1-4

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）