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Titolo:
TURING INSTABILITY IN A BOUNDARY-FED SYSTEM
Autore:
SETAYESHGAR S; CROSS MC;
Indirizzi:
NORTHEASTERN UNIV,DEPT PHYS BOSTON MA 02115 CALTECH PASADENA CA 91125
Titolo Testata:
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
fascicolo: 4, volume: 58, anno: 1998,
pagine: 4485 - 4500
SICI:
1063-651X(1998)58:4<4485:TIIABS>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
MALONIC-ACID REACTION; REACTION-DIFFUSION SYSTEMS; CHEMICAL OSCILLATORS; CHLORINE DIOXIDE; PATTERNS; DESIGN; EQUILIBRIUM; SELECTION; GRADIENT; IODINE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
30
Recensione:
Indirizzi per estratti:
Citazione:
S. Setayeshgar e M.C. Cross, "TURING INSTABILITY IN A BOUNDARY-FED SYSTEM", Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 58(4), 1998, pp. 4485-4500

Abstract

The formation of localized structures in the chlorine dioxide-idodine-malonic acid (CDIMA) reaction-diffusion system is investigated numerically using a realistic model of this system. We analyze the one-dimensional patterns formed along the gradients imposed by boundary feeds, and study their linear stability to symmetry-breaking perturbations (Turing instability) in the plane transverse to these gradients. We establish that an often-invoked simple local linear analysis that neglectslongitudinal diffusion is inappropriate for predicting the linear stability of these patterns. Using a fully nonuniform analysis, we investigate the structure of the patterns formed along the gradients and their stability to transverse Turing pattern formation as a function of the values of two control parameters: the malonic acid feed concentration and the size of the reactor in the dimension along the gradients. The results from this investigation are compared with existing experiments. [S1063-651X(98)15009-2].

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Documento generato il 15/07/20 alle ore 20:18:19