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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 (
Source PublicationProcedia Engineering
Conference Name7th International Conference on Fluid Mechanics, ICFM 2015
Conference DateMay 24, 2015 - May 27, 2015
Conference PlaceQingdao, China
AbstractThis 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.
KeywordImmersed Boundary Methods Numerical Investigations Plunging Propulsive Efficiencies Self Propulsion Systematic Study Wake Structures Wall Effects
Indexed ByEI
Document Type会议论文
Corresponding AuthorDai, Longzhen (
Recommended Citation
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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