Chemical patterns in translating vortices: Inter- and intra-cellular mixing effects

Antoine Vallatos, Rhys Evans, Barnaby W. Thompson, Annette F. Taylor*, Melanie M. Britton

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Stationary chemical patterns-flow distributed oscillations (FDOs)-are obtained when the Belousov-Zhabotinsky reaction is coupled with translating vortex flow in a Vortex Flow Reactor. For certain conditions, the FDOs are unstable with the observation of disappearing bands or complex patterns. The transitions between modes of pattern formation are reproduced in a modified Oregonator model consisting of two-zone cells connected in series. We show that increasing inter-cellular mixing of the outer zones results in a transition from FDO to absolute instabilities (AI) and increasing intra-cellular mixing between the core and outer zones can drive the reverse transition between modes (AI to FDO). (C) 2013 AIP Publishing LLC.

Original languageEnglish
Article number023115
Number of pages6
JournalChaos
Volume23
Issue number2
DOIs
Publication statusPublished - Jun 2013

Keywords

  • FLOW-DISTRIBUTED OSCILLATIONS
  • MAGNETIC-RESONANCE
  • MASS-TRANSFER
  • AXIAL-FLOW
  • TAYLOR
  • REACTOR
  • STATIONARY
  • DYNAMICS
  • WAVES
  • MODEL

Cite this