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

Vallatos, A. , Evans, R., Thompson, B. W., Taylor, A. F. and Britton, M. M. (2013) Chemical patterns in translating vortices: Inter- and intra-cellular mixing effects. Chaos: An Interdisciplinary Journal of Nonlinear Science, 23(2), 023115. (doi: 10.1063/1.4807619)

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).

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Vallatos, Dr Antoine
• Authors: Vallatos, A., Evans, R., Thompson, B. W., Taylor, A. F., and Britton, M. M.
• College/School: College of Medical Veterinary and Life Sciences > School of Psychology & Neuroscience
• Journal Name: Chaos: An Interdisciplinary Journal of Nonlinear Science
• Publisher: American Institute of Physics
• ISSN: 1054-1500
• ISSN (Online): 1089-7682