INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
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Unpinning the spiral waves by using parameter waves |
Lu Peng(彭璐) and Jun Tang(唐军)† |
School of Materials and Physics, China University of Mining and Technology, Xuzhou 221116, China |
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Abstract The spiral waves anchored to heterogeneous areas are more difficult to control and eliminate than freely rotating ones in homogenous mediums. To eliminate pinned spiral waves, the resistant force should be provided to resist the pinning force. Other than advection field, we introduce parametric wave to play the role of providing resistant force. It is found that the parametric wave with large enough amplitude and proper frequency can unpin and eliminate the spiral wave successfully. The capability of parametric wave in providing resistant force is dependent on its amplitude and frequency sensitively. On the basis of parametric wave, the dependence of pinning force on the size and level of heterogeneity is further confirmed.
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Received: 07 October 2020
Revised: 10 November 2020
Accepted manuscript online: 17 December 2020
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PACS:
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82.40.Ck
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(Pattern formation in reactions with diffusion, flow and heat transfer)
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05.65.+b
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(Self-organized systems)
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89.75.Kd
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(Patterns)
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Fund: Project supported by the Fundamental Research Funds for the Central Universities of China (Grant No. 2020ZDPYMS33(JT)). |
Corresponding Authors:
Jun Tang
E-mail: tjuns1979@126.com
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Cite this article:
Lu Peng(彭璐) and Jun Tang(唐军) Unpinning the spiral waves by using parameter waves 2021 Chin. Phys. B 30 058202
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