Volume 76, Number 6, December 2006
|Page(s)||1109 - 1115|
|Section||Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics|
|Published online||23 November 2006|
The effect of mechanical deformation on spiral turbulence
Zhejiang Institute of Modern Physics and Department of Physics Zhejiang University - Hangzhou 310027, PRC
2 Department of Physics, and The Beijing-Hong Kong-Singapore Joint Centre for Nonlinear and Complex Systems (Beijing), Beijing Normal University Beijing 100875, PRC
3 Chinese Center for Advanced Science and Technology (World Laboratory) Beijing 8730, PRC
Accepted: 23 October 2006
The behavior of spiral turbulence in mechanically deformed excitable media is investigated. Numerical simulations show that when the forcing frequency is chosen around the characteristic frequency of the system, complicated spiral turbulence may be quenched within a shorter evolution time, compared to the case free of mechanical deformation. It is shown that the observed phenomenon occurs due to enhancing the drift of spiral tips induced by mechanical deformation.
PACS: 47.54.-r – Pattern selection; pattern formation
© EDP Sciences, 2006
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