【作者】 石胜君； 刘军考； 韩志乐；

【Author】 SHI Sheng-jun,LIU Jun-kao,HAN Zhi-le (State Key Laboratory of Robotics and System,Harbin Institute of Technology,Harbin 150080,China)

【机构】 哈尔滨工业大学机器人技术与系统国家重点实验室；

【摘要】 在拍动翼拍动推进的过程中,可以利用数值模拟的方法分析拍动翼尾部脱落的涡流,研究发现,前拍动翼产生的涡流会对其下游的拍动翼的推进作用造成影响。本文以开发高性能的水下推进器为研究背景,建立了仿金枪鱼尾鳍模型的新月形结构拍动翼,在Fluent软件下对串联结构下拍动翼的推进性能进行了分析,通过改变前后拍动翼之间的运动参数,使得前拍动翼脱落涡流能够作用在后拍动翼上,提高后拍动翼的推进作用,实现串联复合翼推进性能的提高,为研制高性能的水下推进器提供理论依据。更多还原

【Abstract】 The vortices that shed from one flapping wing can be analyzed by numerical simulations,research on the flapping wing have found that the vortices have an effect on the thrust of another flapping foil placed downstream.The paper aims at the development of an autonomous underwater vehicle with high capabilities of propulsion.The writer attempts to model a wing according to the caudal fin of tuna and simulates it in tandem configuration numerically by using CFD computational software Fluent.The simulations indicate that the thrust of the downstream wing can be increased by change the phase relationship between the two wings,because of the vortex structures shed by the upstream.The study results of this paper would provide the reference for the design of underwater vehicle based on flapping propulsion.更多还原