A numerical study on hydrodynamics of pectoral fin locomotion in Batoid fishes
The mechanics of aquatic locomotion are of interest to biologists, dynamicists and engineers. Batoid fish (skates and rays) propel themselves through the water primarily with their greatly expanded pectoral fins (pectoral-fin-based locomotion). In this paper, a computational study on the hydrodynamics of pectoral fin locomotion in Batoid fishes is carried out and presented. We analyzed and compared the Batoid pectoral fin locomotion between two modes (I.e., oscillation and undulation), and discovered how the dynamic peformance change with controllable factors. The results show that the dynamic performance of the two modes is associated with the morphology of the wing skeleton. The propulsive mechanism of pectoral-fin-based locomotion is similar to that of the caudal-fin-based locomotion. The effect of controllable factors on the hydrodynamics in Rhinoptera Bonasus swimming are similar to that in Dasyatis Sabina swimming.
hydrodynamics pectoral fin Batoid fishes N-S equaton
W.R.Hu
Department of Engineering Mechanics, Shanghai Jiaotong University, Shanghai 200240, China
国际会议
The Fifth International Conference on Fluid Mechanics(第五届国际流体力学会议)
上海
英文
2007-08-15（万方平台首次上网日期，不代表论文的发表时间）