Volume 116, Number 6, December 2016
|Number of page(s)||6|
|Published online||16 February 2017|
Patterns in the bubble-free Belousov-Zhabotinsky reaction dissolved in a microemulsion
Institute of Experimental Physics, Otto-von-Guericke University Magdeburg - Universitätsplatz 2, 39106 Magdeburg, Germany
Received: 15 November 2016
Accepted: 25 January 2017
A newly created system, namely a bubble-free Belousov-Zhabotinsky reaction embedded in a microemulsion is experimentally studied, with 1,4-cyclohexanedione used as substrate. Initially, this system shows oscillations or waves. After some minutes, waves do not form a refractory state in their wake, but the system remains excited. However, within this excited regime, a new wave emerges directly behind the initial one, causing an acceleration of the latter. The excited state lasts for several minutes. Subsequently, three different types of patterns emerge, depending on the initial chemical concentrations: wave turbulence, transient lines (TL) and an intermediate state. TL are neither Turing structures nor excitation waves. The intermediate state is a mixed pattern of TL and wave turbulence.
PACS: 05.45.-a – Nonlinear dynamics and chaos / 05.65.+b – Self-organized systems / 82.40.Ck – Pattern formation in reactions with diffusion, flow and heat transfer
© EPLA, 2016
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