IFIMAR   20926
INSTITUTO DE INVESTIGACIONES FISICAS DE MAR DEL PLATA
Unidad Ejecutora - UE
artículos
Título:
Replication of noise-sustained autocatalytic chemical structures
Autor/es:
G. IZÚS; R. DEZA; A. D. SÁNCHEZ
Revista:
JOURNAL OF CHEMICAL PHYSICS
Editorial:
AMER INST PHYSICS
Referencias:
Lugar: Melville (NY); Año: 2010 vol. 132 p. 234112 - 234112
ISSN:
0021-9606
Resumen:
Autocatalytic systems in a differential-°ow reactor may undergo a differential-fow-induced chemical instability towards a convectively unstable regime, in which noise-sustained structures may appear. This is the case of a system with Gray{Scott kinet-ics in a packed-bed reactor, as reported in [Phys. Rev. E 67, 056207 (2003)]. In this work, two identical copies of such a system are coupled in master{slave configuration and submitted to independent spatiotemporal Gaussian white noise sources. Numerical simulation of 2D reactors with uniform and Poiseuille fows reveals that the slave system replicates to a very high degree of precision the convective patterns arising in the master one due to the presence of noise. The quality of this synchronization is assessed through several measures. A convective instability in the synchronizationmanifold is theoretically predicted and numerically confirmed.
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