Phys. Rev. E 60, 1512–1515 (1999)

Spontaneous spiral formation in two-dimensional oscillatory media

Abstract

References

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Petteri Kettunen^1,2, Takashi Amemiya¹, Takao Ohmori¹, and Tomohiko Yamaguchi^1,2,*
¹Department of Chemical Systems, National Institute of Materials and Chemical Research, Higashi 1-1, Tsukuba, Ibaraki 305-8565, Japan
²Department of Physical Sciences, Division of Biophysics, University of Oulu, Linnanmaa, FIN-90570 Oulu, Finland

Received 12 April 1999; published in the issue dated August 1999

Computational studies of pattern formation in a modified Oregonator model of the Belousov-Zhabotinsky reaction is described. Initially inactive two-dimensional reaction media with an immobilized catalyst is connected to a reservoir of fresh reactants through a set of discrete points distributed randomly over the interphase surface. It is shown that the diffusion of reactants combined with oscillatory reaction kinetics can give rise to spontaneous spiral formation and phase waves.

URL:

http://link.aps.org/doi/10.1103/PhysRevE.60.1512

DOI:

10.1103/PhysRevE.60.1512

PACS:

82.20.Mj, 47.54.+r, 82.20.Wt, 87.23.Cc

^*Author to whom correspondence should be addressed.

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Phys. Rev. E 60, 1512–1515 (1999)

Spontaneous spiral formation in two-dimensional oscillatory media