中北大学学报（自然科学版）2016，Vol.37Issue(6)：606-613,8.DOI:10.3969/j.issn.1673-3193.2016.06.010
鳍条倾角对仿生鳍推进力大小的影响
Influence of Ray Angle of a Biomimetic Fin on Its Thrust Generation
摘要
Abstract
In order to investigate the influence of fin ray angle on thrust generation of a biomimetic undu-lating fin,kinematic modeling and hydrodynamic modeling were established.Based on experimental technology,the change of thrust with fin ray angles 30°,40°,45°,50°,60°,70°,80°and 90°)under the two conditions (constant fin ray length and constant fin surface area)were illustrated.The thrust at fin ray angle of 45°with different kinematic parameters under the two conditions were also measured.A preliminary explanation on the cause of those differences was conducted according to the theory of com-putational fluid dynamics (CFD).The results indicate that:in the case of the constant fin ray length, the averaged propulsion thrust increases with the increase of angle of fin ray;in the case of the constant fin area,the averaged thrust decreases with the increase of angle of fin ray.However,the averaged thrust in the case of the constant fin area is always larger than the case of the constant fin ray length at the same condition.The results provide some useful references for optimal structure design of biomimet-ic undulating fin based propulsor.关键词
波动鳍/鳍条倾角/推进力/计算流体动力学Key words
undulating fin/fin ray inclination/thrust/computational fluid dynamics分类
信息技术与安全科学引用本文复制引用
章永华..鳍条倾角对仿生鳍推进力大小的影响[J].中北大学学报（自然科学版）,2016,37(6):606-613,8.基金项目
浙江省自然科学基金资助项目(LY15E060001) （LY15E060001）
台州职业技术学院一般课题(2017YB01) （2017YB01）
