Spatiotemporal irregularity in an excitable medium with shear flow

Biktashev, V., Biktasheva, I., Holden, A., Tsyganov, M., Brindley, J. and Hill, N.A. (1999) Spatiotemporal irregularity in an excitable medium with shear flow. Physical Review E, 60(2), pp. 1897-1900. (doi: 10.1103/PhysRevE.60.1897)

Abstract

We consider an excitable medium moving with relative shear, subjected to a localized disturbance that in a stationary medium would produce a pair of spiral waves. The spiral waves so created are distorted and then broken by the motion of the medium. Such breaks generate new spiral waves, and so a “chain reaction” of spiral wave births and deaths is observed. This leads to a complicated spatiotemporal pattern, the “frazzle gas” [term suggested by Markus et al., Nature (London) 371, 402 (1994)], which eventually fills the whole medium. In this paper, we display and interpret the main features of the pattern.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Hill, Professor Nicholas
• Authors: Biktashev, V., Biktasheva, I., Holden, A., Tsyganov, M., Brindley, J., and Hill, N.A.
• College/School: College of Science and Engineering > School of Mathematics and Statistics > Mathematics
• Journal Name: Physical Review E
• ISSN: 1063-651X
• ISSN (Online): 1095-3787