Scroll wave instabilities in an excitable chemical medium |
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| Authors: | Luengviriya Chaiya Storb Ulrich Lindner Gert Müller Stefan C Bär Markus Hauser Marcus J B |
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| Institution: | Biophysics Group, Otto-von-Guericke-Universit?t Magdeburg, Universit?tsplatz 2, 39106 Magdeburg, Germany. |
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| Abstract: | Two kinds of scroll wave instabilities were studied experimentally in the excitable Belousov-Zhabotinsky reaction: three-dimensional meandering and negative line tension of the scroll wave filament. The filament displays a flat zigzag shape in the initial stages of the experiment. As the chemical medium ages, the filament assumes a wiggly shape while its length increases substantially. Numerical simulations underpin the experimental findings and their interpretation. |
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