Excitation wave breaking in excitable media with linear shear flow

被引:34
作者
Biktashev, VN [1 ]
Holden, AV
Tsyganov, MA
Brindley, J
Hill, NA
机构
[1] Univ Leeds, Dept Physiol, Leeds LS2 9JT, W Yorkshire, England
[2] Univ Leeds, Dept Appl Math, Leeds LS2 9JT, W Yorkshire, England
[3] Russian Acad Sci, Inst Theoret & Expt Biophys, Pushchino 142292, Moscow Region, Russia
关键词
D O I
10.1103/PhysRevLett.81.2815
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
If an excitable medium is moving with relative shear, the waves of excitation may be broken by the motion. We consider such breaks for the case of a constant linear shear flow. The mechanisms and conditions for the breaking of solitary waves and wave trains are essentially different: the solitary waves require the velocity gradient to exceed a certain threshold, while the breaking of repetitive wave trains happens for arbitrarily small velocity gradients.
引用
收藏
页码:2815 / 2818
页数:4
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