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2012 | OriginalPaper | Chapter

Shark Skin Boundary Layer Control

Authors : Amy Lang, Philip Motta, Maria Laura Habegger, Robert Hueter

Published in: Natural Locomotion in Fluids and on Surfaces

Publisher: Springer New York

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Abstract

An investigation into the separation control mechanisms found on the skin of fast-swimming sharks, with a particular focus on the shortfin mako (Isurus oxyrinchus) which is considered to be one of the fastest pelagic shark species, was carried out. Previous researchers have reported a bristling capability of the scales, or denticles, in certain species of sharks. This study identified that bristling angle is highly dependent on body location, with some scales easily erectable to angles in excess of 50^∘. The flexibility of the scale appears to be due to a reduction in the size of the base of the scale where anchored into the skin. It is hypothesized that the scales act as a passive, flow-actuated mechanism as a means of controlling flow separation.

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previous chapter Slithering Locomotion

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Title: Shark Skin Boundary Layer Control
Authors: Amy Lang
Philip Motta
Maria Laura Habegger
Robert Hueter
Publisher: Springer New York
Book: Natural Locomotion in Fluids and on Surfaces
Print ISBN: 978-1-4614-3996-7

Electronic ISBN: 978-1-4614-3997-4

Copyright Year: 2012
DOI: https://doi.org/10.1007/978-1-4614-3997-4_9

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