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Journal Articles Bioinspiration and Biomimetics Year : 2014

Effect of caudal fin flexibility on the propulsive efficiency of a fish-like swimmer

Abstract

A computational model is used to examine the effect of caudal fin flexibility on the propulsive efficiency of a self-propelled swimmer. The computational model couples a penalization method based Navier-Stokes solver with a simple model of flow induced deformation and self-propelled motion at an intermediate Reynolds number of about 1000. The results indicate that a significant increase in efficiency is possible by careful choice of caudal fin rigidity. The flow-physics underlying this observation is explained through the use of a simple hydrodynamic force model and guidelines for bioinspired designs of flexible fin propulsors are proposed.
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Dates and versions

hal-01059643 , version 1 (01-09-2014)

Identifiers

  • HAL Id : hal-01059643 , version 1

Cite

Michel Bergmann, Angelo Iollo, Rajat Mittal. Effect of caudal fin flexibility on the propulsive efficiency of a fish-like swimmer. Bioinspiration and Biomimetics, 2014. ⟨hal-01059643⟩
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