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Title: Expanding scroll rings and negative tension turbulence in a model of excitable media
Author: Alonso, S.
Kahler, R.
Mikhailov, A. S. (Alexander S.), 1950-
Sagués i Mestre, Francesc
Keywords: Física estadística
Química física
Statistical physics
Physical chemistry
Issue Date: 2004
Publisher: The American Physical Society
Abstract: Scroll waves in excitable media, described by the Barkley model, are studied. In the parameter region of weak excitability, negative tension of wave filaments is found. It leads to expansion of scroll rings and instability of wave filaments. A circular filament tends to stretch, bend, loop, and produce an expanding tangle that fills up the volume. The filament does not undergo fragmentation before it touches the boundaries. Statistical properties of such Winfree turbulence of scroll waves are numerically investigated.
Note: Reproducció del document publicat a:
It is part of: Physical Review e, 2004, vol. 70, núm. 5, p. 056201-1-056201-10
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ISSN: 1063-651X
Appears in Collections:Articles publicats en revistes (Ciència dels Materials i Química Física)

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