Many chemical and biological processes take place in fluid environments in constant
motion? chemical reactions in the atmosphere, biological population dynamics in the ocean …

We discuss the design of reaction-diffusion systems that display a variety of spatiotemporal
patterns. We also consider how these patterns may be controlled by external perturbation …

Oscillatory kinetics coupled to diffusion can produce traveling waves as observed in
physical, chemical, and biological systems. We show experimentally that the properties of …

We present theory and experiments on the dynamics of reaction fronts in two-dimensional,
vortex-dominated flows, for both time-independent and periodically driven cases. We find …

Recent theoretical and experimental work has demonstrated the existence of one-sided,
invariant barriers to the propagation of reaction-diffusion fronts in quasi-two-dimensional …

We present experiments on the motion of chemical fronts in ordered and disordered vortex
flows with imposed uniform winds. Fronts in a chain of alternating vortices are found to …

We present experiments on reactive front propagation in a two-dimensional (2D) vortex
chain flow (both time-independent and time-periodic) and a 2D spatially disordered (time …

Pattern formation in reaction-diffusion systems is an important self-organizing mechanism in
nature. Dynamics of systems with normal diffusion do not always reflect the processes that …

We present experimental studies of reaction front propagation in a single vortex flow with an
imposed external wind. The fronts are produced by the excitable, ferroin-catalyzed Belousov …

The dynamics of fronts, such as chemical reaction fronts, propagating in two-dimensional
fluid flows can be remarkably rich and varied. For time-invariant flows, the front dynamics …