A model of mixing and transport in wavy Taylor-Couette flow

Matthias Rudolph, Troy Shinbrot, Richard M. Lueptow*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

Wavy Taylor vortex flow was simulated by developing a stream function model of the velocity vector field in a radial-axial plane that mimics an experimentally obtained velocity field. The simulation neglects the azimuthal component of velocity but provides estimates of the mixing and axial transport properties of wavy vortex flow in the axial-radial plane at higher Taylor numbers (Ta) and larger gap widths than previous models. Based on the estimated Lyapunov numbers, the particle paths appear to be chaotic for wavy vortex flow in the range 131 ≤Ta≤253. The axial particle transport increases with the Taylor number in this range, most likely due to increased axial transport of fluid between vortices. The mixing within vortices is also enhanced with increasing Taylor number as a result of increased stretching and folding within a vortex.

Original languageEnglish (US)
Pages (from-to)163-174
Number of pages12
JournalPhysica D: Nonlinear Phenomena
Volume121
Issue number1-2
DOIs
StatePublished - 1998

Keywords

  • Mixing
  • Taylor-Couette flow
  • Transport

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Mathematical Physics
  • Condensed Matter Physics
  • Applied Mathematics

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