Motion of spiral waves induced by local pacing

• Authors: Jiang-Xing Chen , Gui-Na Wei , Bing-Wei Li , Jiang-Rong Xu
• Languages of publication: EN

Abstracts

EN

The motion of spiral waves in excitable media driven by a weak pacing around the spiral tip is investigated numerically as well as theoretically. We presented a Bifurcations diagram containing four types of the spiral motion induced by different frequencies of pacing: rigidly rotating, inward-petal meandering, resonant drift, and outward-petal meandering spiral. Simulation shows that the spiral resonantly drifts when the frequency of pacing is close to that of the spiral rotation. We also find that the speed and direction of the drift can be efficiently controlled by means of the strength and phase of the local pacing, which is consistent with analytical results based on the framework of the weak deformation approximation.

Keywords

EN

spiral wave; local pacing; resonant drift; weak deformation approximation

Discipline

• 47.54.Fj: Chemical and biological applications
• 87.19.Hh: Cardiac dynamics
• 82.40.Ck: Pattern formation in reactions with diffusion, flow and heat transfer(see also 47.54.-r Pattern selection; pattern formation and 47.32.C- Vortex dynamics in fluid dynamics)

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2008
• Volume: 6
• Issue: 3
• Pages: 427-433

Dates

published

1 - 9 - 2008

online

17 - 7 - 2008

Contributors

author

Jiang-Xing Chen

• Department of physics, Hangzhou Dianzi University, Hangzhou, 310018, China

author

Gui-Na Wei

• The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China

author

Bing-Wei Li

• Department of Physics, Zhejiang University, Hangzhou, 310027, China

author

Jiang-Rong Xu

• Department of physics, Hangzhou Dianzi University, Hangzhou, 310018, China

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Identifiers

DOI

10.2478/s11534-008-0068-3