Symmetry breaking to a rotating wave in a lid-driven cylinder with a free surface: Experimental observation

A. H. Hirsa, Juan Lopez, R. Miraghaie

Research output: Contribution to journalArticle

31 Scopus citations

Abstract

A systematic experimental investigation of the flow in an open cylinder, driven by the constant rotation of the bottom endwall, shows that axisymmetry is spontaneously broken via a supercritical Hopf bifurcation to a rotating wave with azimuthal wave number 4. The physical mechanism responsible for the symmetry breaking is shown to be due to the instability of the shear layer that is produced by the boundary layer on the bottom rotating endwall being turned into the interior by the stationary sidewall. Comparison with other experiments and numerical studies (restricted to axisymmetric subspaces) sheds new light on disparate observations in the literature and helps distinguish between spontaneous and forced (via imperfections) symmetry breaking.

Original languageEnglish (US)
Pages (from-to)L29-L32
JournalPhysics of Fluids
Volume14
Issue number6
DOIs
StatePublished - Jun 2002

ASJC Scopus subject areas

  • Computational Mechanics
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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