MECHANISM OF THE ELECTRIC-FIELD-INDUCED VORTEX DRIFT IN EXCITABLE MEDIA

Authors
MUNUZURI AP GOMEZGESTEIRA M PEREZMUNUZURI V KRINSKY VI PEREZVILLAR V
Citation
Ap. Munuzuri et al., MECHANISM OF THE ELECTRIC-FIELD-INDUCED VORTEX DRIFT IN EXCITABLE MEDIA, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 48(5), 1993, pp. 180003232-180003235
Citations number
12
Categorie Soggetti
Physycs, Mathematical","Phsycs, Fluid & Plasmas
Journal title
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics → ACNP
ISSN journal
1063651X
Volume
48
Issue
5
Year of publication
1993
Pages
180003232 - 180003235
Database
ISI
SICI code
1063-651X(1993)48:5<180003232:MOTEVD>2.0.ZU;2-7
Abstract
A vortex behavior in an electric field is shown to depend strongly on the elongation and contraction of the vortex tip. The wave width of th e rotating vortex tip is periodically modulated: it increases (decreas es) when the tip propagates to the positive (negative) electrode. This affects the elongation of the vortex tip, resulting in a perpendicula r component of the drift defined by chirality of the vortex. A kinemat ic model is formulated where the elongation of a wave break is explici tly defined by the wave width, and its behavior is compared with the n umerical calculations of reaction-diffusion equations.