Numerical Study of the Hydrodynamic Performance of Two Wiggling Hydrofoils in Diagonal Arrangement - Journal of Applied Mathematics and Physics

JAMP > Vol.5 No.1, January 2017

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

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DOI: 10.4236/jamp.2017.51005 1,043 Downloads 1,761 Views Citations

Author(s)

Xingjian Lin¹, Guoyi He¹, Xinyi He², Qi Wang¹, Longsheng Chen¹

Affiliation(s)

¹The School of Aircraft Engineering, Nanchang Hangkong University, Nanchang, China.
²The School of Software, Nanchang Hangkong University, Nanchang, China.

ABSTRACT

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.

KEYWORDS

Hydrodynamic Performance, Fish School, Diagonal Arrangement, Longitudinal Spacing

Share and Cite:

Lin, X. , He, G. , He, X. , Wang, Q. and Chen, L. (2017) Numerical Study of the Hydrodynamic Performance of Two Wiggling Hydrofoils in Diagonal Arrangement. Journal of Applied Mathematics and Physics, 5, 31-38. doi: 10.4236/jamp.2017.51005.

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