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Computational assessment of the fluid flow around coasting mature male blue sharks, Prionace glauca (L.)

Lookup NU author(s): Dr Gary Caldwell

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Abstract

Body induced vortices and flow regimes surrounding five mature male blue sharks, Prionace glauca (L.), were investigated. Flow was simulated using 3-dimensional computational fluid dynamics software (Fluent^TM). A k-epsilon turbulent model represented the ocean flow regime. Compared to controls (horizontal cylinders) morphology increased the flow velocity along the body surface. The region around the gill slits displayed maximum relative velocity magnitude which may improve oxygen uptake. The area of the lateral line adjacent to the dorsal fin returned the minimum relative velocity magnitude. The vorticity magnitude was enhanced by dorsal fin-body interactions along the adjacent section of lateral line suggesting that P. glauca channels vortices along the lateral line, at reduced relative velocity magnitudes.

Publication metadata

Author(s): Smith THE, Caldwell GS

Publication type: Article

Publication status: Published

Journal: Journal of Marine Biology

Year: 2009

Volume: 2009

Pages: Article ID 861590

Print publication date: 28/10/2009

Date deposited: 20/01/2010

ISSN (print): 1687-9481

ISSN (electronic): 1687-949X

Publisher: Hindawi Publishing Corporation

URL: http://dx.doi.org/10.1155/2009/861590

DOI: 10.1155/2009/861590

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