Numerical Study of the Hydrodynamic Performance of Two Wiggling Hydrofoils in Diagonal Arrangement | Zendy

Xingjian Lin | Zendy; Guoyi He | Zendy; Xinyi He | Zendy; Qi Wang | Zendy; Longsheng Chen | Zendy

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Numerical Study of the Hydrodynamic Performance of Two Wiggling Hydrofoils in Diagonal Arrangement

Author(s) -

Xingjian Lin,

Guoyi He,

Xinyi He,

Qi Wang,

Longsheng Chen

Publication year - 2017

Publication title -

journal of applied mathematics and physics

Language(s) - English

Resource type - Journals

eISSN - 2327-4379

pISSN - 2327-4352

DOI - 10.4236/jamp.2017.51005

Subject(s) - diagonal , mechanics , phase (matter) , physics , boundary (topology) , flow (mathematics) , computer simulation , classical mechanics , geometry , mathematics , mathematical analysis , quantum mechanics

The hydrodynamics in fish school are studied through simulating the flow over two wiggling hydrofoils in diagonal arrangement by using the immersed boundary method, both in-phase and anti-phase wiggling motions are considered in this study, the effect of the longitudinal spacing on the hydrodynamic performance has been investigated. It is revealed that, when the longitudinal spacing is smaller than body length, the diagonal formation is helpful to the follower but harmful to the leader; when the longitudinal spacing is larger than body length, the opposite effect is occurring; and a significant enhancement of the propulsive performance is obtained when the longitudinal spacing is optimized.

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