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Influence of a circular obstacle on the dynamics of stable spiral waves with straining
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Influence of a circular obstacle on the dynamics of stable spiral waves with straining
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Journal Article
Influence of a circular obstacle on the dynamics of stable spiral waves with straining
2022
Overview
The current study envisages to investigate numerically, probably for the first time, the combined effect of a circular obstacle and medium motion on the dynamics of a stable rotating spiral wave. A recently reconstructed spatially fourth and temporally second order accurate, implicit, unconditionally stable high order compact scheme has been employed to carry out simulations of the Oregonator model of excitable media. Apart from studying the effect of the stoichiometric parameter, we provide detailed comparison between the dynamics of spiral waves with and without the circular obstacles in the presence of straining effect. In the process, we also inspect the dynamics of rigidly rotating spiral waves without straining effect in presence of the circular obstacle. The presence of the obstacle was seen to trigger transition to non-periodic motion for a much lower strain rate.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
