Buckling of scroll waves
| Autor: | Dierckx, Hans, Verschelde, Henri, Selsil, Ozgur, Biktashev, Vadim |
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| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | Phys. Rev. Lett., 109(17):174102, 2012 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevLett.109.174102 |
| Popis: | A scroll wave in a sufficiently thin layer of an excitable medium with negative filament tension can be stable nevertheless due to filament rigidity. Above a certain critical thickness of the medium, such scroll wave will have a tendency to deform into a buckled, precessing state. Experimentally this will be seen as meandering of the spiral wave on the surface, the amplitude of which grows with the thickness of the layer, until a break-up to scroll wave turbulence happens. We present a simplified theory for this phenomenon and illustrate it with numerical examples. Comment: 4 pages main text + 5 pages appendix, 4+2 figures and a movie, as accepted by Phys Rev Letters 2012/09/24 |
| Databáze: | arXiv |
| Externí odkaz: |
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