Effects of Macromixing on the oregonator model of the belousov - zhabotinsky reaction in a stirred reactor

T. J. Hsu; C. Y. Mou; D. J. Lee

doi:10.1016/0009-2509(94)00278-9

Effects of Macromixing on the oregonator model of the belousov - zhabotinsky reaction in a stirred reactor

T. J. Hsu, C. Y. Mou, D. J. Lee

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

Macromixing effects on the oscillating Belousov-Zhabotinsky reaction based on the global fluid field have been investigated. The three-variable irreversible Oregonator and the networks-of-zones model with 2 × N × N zones were chosen for describing the chemical kinetics and the flow field, respectively. With high stirring rate, all zones in the tank will oscillate synchronously and the tank can be taken as an ideally well-mixing continuous-flow stirred-tank reactor. When stirring rate is decreased, locally simple oscillation patterns were found to be sustained, and the oscillation period was decreased accordingly. It is proposed that the output zone acts as an excitable nucleus which determines the overall oscillations. When stirring rate is reduced further, many local zones can be excited as nuclei, and apparent complex oscillations can result.

Original language	English
Pages (from-to)	5291-5305
Number of pages	15
Journal	Chemical Engineering Science
Volume	49
Issue number	24
DOIs	https://doi.org/10.1016/0009-2509(94)00278-9
Publication status	Published - Dec 1994
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

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abstract = "Macromixing effects on the oscillating Belousov-Zhabotinsky reaction based on the global fluid field have been investigated. The three-variable irreversible Oregonator and the networks-of-zones model with 2 × N × N zones were chosen for describing the chemical kinetics and the flow field, respectively. With high stirring rate, all zones in the tank will oscillate synchronously and the tank can be taken as an ideally well-mixing continuous-flow stirred-tank reactor. When stirring rate is decreased, locally simple oscillation patterns were found to be sustained, and the oscillation period was decreased accordingly. It is proposed that the output zone acts as an excitable nucleus which determines the overall oscillations. When stirring rate is reduced further, many local zones can be excited as nuclei, and apparent complex oscillations can result.",

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AU - Mou, C. Y.

AU - Lee, D. J.

PY - 1994/12

Y1 - 1994/12

N2 - Macromixing effects on the oscillating Belousov-Zhabotinsky reaction based on the global fluid field have been investigated. The three-variable irreversible Oregonator and the networks-of-zones model with 2 × N × N zones were chosen for describing the chemical kinetics and the flow field, respectively. With high stirring rate, all zones in the tank will oscillate synchronously and the tank can be taken as an ideally well-mixing continuous-flow stirred-tank reactor. When stirring rate is decreased, locally simple oscillation patterns were found to be sustained, and the oscillation period was decreased accordingly. It is proposed that the output zone acts as an excitable nucleus which determines the overall oscillations. When stirring rate is reduced further, many local zones can be excited as nuclei, and apparent complex oscillations can result.

AB - Macromixing effects on the oscillating Belousov-Zhabotinsky reaction based on the global fluid field have been investigated. The three-variable irreversible Oregonator and the networks-of-zones model with 2 × N × N zones were chosen for describing the chemical kinetics and the flow field, respectively. With high stirring rate, all zones in the tank will oscillate synchronously and the tank can be taken as an ideally well-mixing continuous-flow stirred-tank reactor. When stirring rate is decreased, locally simple oscillation patterns were found to be sustained, and the oscillation period was decreased accordingly. It is proposed that the output zone acts as an excitable nucleus which determines the overall oscillations. When stirring rate is reduced further, many local zones can be excited as nuclei, and apparent complex oscillations can result.

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Effects of Macromixing on the oregonator model of the belousov - zhabotinsky reaction in a stirred reactor

Abstract

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