Control of waves, patterns and turbulence in chemical systems

AS Mikhailov, K Showalter - Physics Reports, 2006 - Elsevier
We review experimental and theoretical studies on the design and control of spatiotemporal
behavior in chemical systems. A wide range of approaches have been pursued to control …

Oscillatory cluster patterns in a homogeneous chemical system with global feedback

VK Vanag, L Yang, M Dolnik, AM Zhabotinsky… - Nature, 2000 - nature.com
Oscillatory clusters are sets of domains in which nearly all elements in a given domain
oscillate with the same amplitude and phase,,,. They play an important role in understanding …

The Tris (2, 2'-Bipyridyl) Ruthenium-Catalysed Belousov–Zhabotinsky Reaction

R Toth, AF Taylor - Progress in Reaction Kinetics and …, 2006 - journals.sagepub.com
The Belousov–Zhabotinsky (BZ) reaction is the prototypical oscillating chemical reaction.
The tris (2, 2'-bipyridine) ruthenium-catalysed BZ reaction (often simply referred to as the …

Mechanism and phenomenology of an oscillating chemical reaction

AF Taylor - Progress in Reaction Kinetics and Mechanism, 2002 - journals.sagepub.com
Chemical reactions, which are far from equilibrium, are capable of displaying oscillations in
species concentrations and hence in colour, electrode potential, pH and/or temperature. The …

Pattern Formation in the Belousov− Zhabotinsky Reaction with Photochemical Global Feedback

VK Vanag, AM Zhabotinsky… - The Journal of Physical …, 2000 - ACS Publications
We have found a variety of oscillating patterns in the Belousov− Zhabotinsky (BZ) reaction−
diffusion system with global negative feedback. Bulk oscillations and wave patterns arise at …

Numerical study of the drift of scroll waves by optical feedback in cardiac tissue

YX Xia, LH Xie, YJ He, JT Pan, AV Panfilov, H Zhang - Physical Review E, 2023 - APS
Nonlinear waves were found in various types of physical, chemical, and biological excitable
media, eg, in heart muscle. They can form three-dimensional (3D) vortices, called scroll …

Dynamics of scroll waves with time-delay propagation in excitable media

JX Chen, J Xiao, LY Qiao, JR Xu - Communications in Nonlinear Science …, 2018 - Elsevier
Abstract Information transmission delay can be widely observed in various systems. Here,
we study the dynamics of scroll waves with time-delay propagation among slices in excitable …

Expanding scroll rings and negative tension turbulence in a model of excitable media

S Alonso, R Kähler, AS Mikhailov, F Sagués - Physical Review E—Statistical …, 2004 - APS
Scroll waves in excitable media, described by the Barkley model, are studied. In the
parameter region of weak excitability, negative tension of wave filaments is found. It leads to …

Spatial confinement causes lifetime enhancement and expansion of vortex rings with positive filament tension

JF Totz, H Engel, O Steinbock - New Journal of Physics, 2015 - iopscience.iop.org
We study the impact of spatial confinement on the dynamics of three-dimensional (3D)
excitation vortices with circularfilaments. In a chemically active medium we observe a …

Three-dimensional autonomous pacemaker in the photosensitive Belousov-Zhabotinsky medium

A Azhand, JF Totz, H Engel - Europhysics Letters, 2014 - iopscience.iop.org
In experiments with the photosensitive Belousov-Zhabotinsky reaction (PBZR) we found a
stable three-dimensional organizing center that periodically emits trigger waves of chemical …