Suppression of spirals and turbulence in inhomogeneous excitable media

Autor:	Yuan Li, Jun-Wen Mao, Ya-Feng He, Jiangrong Xu, Xiao-Ping Yuan, Jiang-Xing Chen, Bambi Hu
Rok vydání:	2009
Předmět:	Physics Synchronization (alternating current) Classical mechanics Turbulence Electric field Dispersion relation Periodic forcing Pattern formation Boundary (topology) Spiral (railway)
Zdroj:	Physical Review E. 79
ISSN:	1550-2376 1539-3755
DOI:	10.1103/physreve.79.066209
Popis:	Suppression of spiral and turbulence in inhomogeneous media due to local heterogeneity with higher excitability is investigated numerically. When the inhomogeneity is small, control tactics by boundary periodic forcing (BPF) is effective against the existing spiral and turbulence. When the inhomogeneity of excitability is large, a rotating electric field (REF) is utilized to "smooth" regional heterogeneity based on driven synchronization. Consequently, a control approach combining BPF with REF is proposed to suppress the spiral and turbulence. The underlying mechanism of successful suppression is discussed in terms of dispersion relation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b243ad19ec1be6ea728b9556415f122 https://doi.org/10.1103/physreve.79.066209 Zobrazit plný text záznamu