不同扣角和倾角下帆船帆翼空气动力特性的分析研究  

Influence of different pitch on the aerodynamic performance of the sails

作　　者：马勇[1] 郑伟涛[1] 

机构地区：[1]武汉体育学院体育工程与信息技术系,国家体育总局体育工程重点实验室,湖北武汉430079

出　　处：《山东体育学院学报》2012年第5期52-54,共3页Journal of Shandong Sport University

基　　金：国家自然科学基金(51009113);国家科技支撑计划(2012BAK23B05);国家体育总局奥运会科研攻关项目(2011A025;09B030);湖北省教育厅科学技术研究项目(Q200933002)资助

摘　　要：利用数值模拟方法对不同扣角和倾角下的升力系数、阻力系数、力矩系数以及帆翼底部流场进行分析,发现帆翼扣角以后帆翼升力系数、阻力系数都变小,垂直水平面上力系数增加很多,这个力增加可以减小船体阻力、有利于帆船行驶。另外,帆翼扣角以后帆翼力矩有不同程度的减小,这对于帆船行驶来说是有利的,可以减小帆船倾斜。单独从升力来看倾角为-10°是有利的。The lift coefficient, drag coefficient, moment coefficient and flow field of the sail bottom were analyzed when there were different pitch angles. If the sail was pitched with the direction of the athlete, the lift coefficient would decrease, but the upward force coefficient would enhance awfully. So, it would be propitious to decrease the resistance of the hull and enhance the speed of the sail- ing. The pitch with the direction of the stern would enhance the lift coefficient of the sails and the speed of the sailing. The research would be contributed to trimmin~ the sails during the sailing.

关 键 词：帆船 帆翼 扣角 倾角 升力 阻力 

分 类 号：G861.7[文化科学—体育训练]