Self-propulsion of a Flexible Plunging Foil Near a Solid Wall

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	Self-propulsion of a Flexible Plunging Foil Near a Solid Wall
	Dai LZ; He GW(何国威); Zhang X(张星); Dai, Longzhen (dailongzhen@imech.ac.cn)
会议录名称	Procedia Engineering
	2015
会议名称	7th International Conference on Fluid Mechanics, ICFM 2015
会议日期	May 24, 2015 - May 27, 2015
会议地点	Qingdao, China
摘要	This paper is a numerical investigation of wall effect on the self-propulsion of a flexible plunging foil. Simulations are performed by a Fluid-Structure Interaction (FSI) solver which couples immersed boundary method for the fluid and finite difference method for the structure. A systematic study is conducted by varying the distance between the foil and the wall. It is found that the time-Averaged lift force first pulls the foil towards the wall and then pushes foil away from the wall as the distance decreases. The cruising speed increases when the foil approaches the wall, while the propulsive efficiency decreases a little and then increases rapidly as the distance becomes less than one chord length of the foil. It is observed that wake structure deflects obviously in the near-foil regions, but becomes parallel to the horizontal direction again in the far field downstream. © 2015 The Authors.
关键词	Immersed Boundary Methods Numerical Investigations Plunging Propulsive Efficiencies Self Propulsion Systematic Study Wake Structures Wall Effects
课题组名称	LNM湍流
URL	查看原文
收录类别	EI
语种	英语
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/60159
专题	非线性力学国家重点实验室
通讯作者	Dai, Longzhen (dailongzhen@imech.ac.cn)
推荐引用方式 GB/T 7714	Dai LZ,He GW,Zhang X,et al. Self-propulsion of a Flexible Plunging Foil Near a Solid Wall[C]Procedia Engineering,2015.

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