Target-wave to spiral-wave pattern transition in a discrete Belousov-Zhabotinsky reaction driven by inactive resin beads

Autor:	Zhengdong Cheng, Guanqun Wang, Srinivasa R. Pullela, Qingsheng Wang, Peng He, Manuel Marquez
Rok vydání:	2010
Předmět:	education.field_of_study Materials science Population Pattern formation Molecular physics Microspheres Discrete system Belousov–Zhabotinsky reaction Models Chemical Control theory Spiral wave Polystyrenes Ion Exchange Resins Spiral (railway) education Ion-exchange resin Bifurcation
Zdroj:	Physical Review E. 82
ISSN:	1550-2376 1539-3755
DOI:	10.1103/physreve.82.045201
Popis:	Wave pattern formation and transition in chemical and biochemical reaction systems can reveal the system properties. We investigate the pattern transition from target waves to spiral waves upon the increment of inactive beads in a discrete system model, where ion-exchange resin loaded with Belousov-Zhabotinsky catalyst corresponds to the active beads. The results show that inactive beads slow the propagation speed of target waves and increase the wave frequency. As the population of inactive beads increases, clusters are formed, which then break waves into segments where bounded spiral pairs are generated and separated into individual spirals. From this observation, we conclude that the population of inactive resin beads acts as the bifurcation parameter controlling the wave pattern transition from targets to spirals.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd13c530f07a96215a29e88c09d9d7b2 https://doi.org/10.1103/physreve.82.045201 Zobrazit plný text záznamu