Analysis of three-dimensional effects in oscillating cantilevers immersed in viscous fluids

Andrea L. Facci, Maurizio Porfiri

Research output: Contribution to journalArticle

Abstract

In this paper, we numerically study the flow physics induced by the flexural vibration of a thin cantilever plate submerged in a viscous and otherwise quiescent fluid. The computational fluid dynamics simulations are based on a finite volume approximation of the incompressible Navier-Stokes equations. We perform a detailed parametric study on relevant nondimensional parameters, including plate aspect ratio, oscillatory Reynolds number, and relative vibration amplitude, to investigate their effects on the hydrodynamic load experienced by the structure and its thrust production. Numerical results are validated with experimental data on underwater vibration of ionic polymer metal composites and used to ascertain the accuracy of theoretical findings from reduced order models available in the literature.

Original languageEnglish (US)
Pages (from-to)205-222
Number of pages18
JournalJournal of Fluids and Structures
Volume38
DOIs
StatePublished - Apr 2013

Keywords

  • Biomimetic propulsion
  • Computational fluid dynamics
  • Hydrodynamic function
  • Underwater propulsion
  • Underwater vibration

ASJC Scopus subject areas

  • Mechanical Engineering

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