Low frequency temperature forcing of chemical oscillations

J. Novak; B.W. Thompson; M.C.T. Wilson; A.F. Taylor; M.M. Britton

doi:10.1039/c1cp21096c

Low frequency temperature forcing of chemical oscillations

J. Novak
, B.W. Thompson
, M.C.T. Wilson
, A.F. Taylor
, M.M. Britton

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

11 Citations (Scopus)

Abstract

The low frequency forcing of chemical oscillations by temperature is investigated experimentally in the Belousov-Zhabotinsky (BZ) reaction and in simulations of the Oregonator model with Arrhenius temperature dependence of the rate constants. Forcing with temperature leads to modulation of the chemical frequency. The number of response cycles per forcing cycle is given by the ratio of the natural frequency to the forcing frequency and phase locking is only observed in simulations when this ratio is a whole number and the forcing amplitude is small. The global temperature forcing of flow-distributed oscillations in a tubular reactor is also investigated and synchronisation is observed in the variation of band position with the external signal, reflecting the periodic modulation of chemical oscillations by temperature.

Original language	English
Pages (from-to)	12321-12327
Journal	Physical Chemistry Chemical Physics
Volume	13
DOIs	https://doi.org/10.1039/c1cp21096c
Publication status	Published - 3 Jun 2011

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AU - Novak, J.

AU - Thompson, B.W.

AU - Wilson, M.C.T.

AU - Taylor, A.F.

AU - Britton, M.M.

PY - 2011/6/3

Y1 - 2011/6/3

N2 - The low frequency forcing of chemical oscillations by temperature is investigated experimentally in the Belousov-Zhabotinsky (BZ) reaction and in simulations of the Oregonator model with Arrhenius temperature dependence of the rate constants. Forcing with temperature leads to modulation of the chemical frequency. The number of response cycles per forcing cycle is given by the ratio of the natural frequency to the forcing frequency and phase locking is only observed in simulations when this ratio is a whole number and the forcing amplitude is small. The global temperature forcing of flow-distributed oscillations in a tubular reactor is also investigated and synchronisation is observed in the variation of band position with the external signal, reflecting the periodic modulation of chemical oscillations by temperature.

AB - The low frequency forcing of chemical oscillations by temperature is investigated experimentally in the Belousov-Zhabotinsky (BZ) reaction and in simulations of the Oregonator model with Arrhenius temperature dependence of the rate constants. Forcing with temperature leads to modulation of the chemical frequency. The number of response cycles per forcing cycle is given by the ratio of the natural frequency to the forcing frequency and phase locking is only observed in simulations when this ratio is a whole number and the forcing amplitude is small. The global temperature forcing of flow-distributed oscillations in a tubular reactor is also investigated and synchronisation is observed in the variation of band position with the external signal, reflecting the periodic modulation of chemical oscillations by temperature.

UR - https://www.scopus.com/pages/publications/79959449037

UR - https://pubs.rsc.org/en/content/articlelanding/2011/CP/c1cp21096c#!divAbstract

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DO - 10.1039/c1cp21096c

M3 - Article

SN - 1463-9076

VL - 13

SP - 12321

EP - 12327

JO - Physical Chemistry Chemical Physics

JF - Physical Chemistry Chemical Physics

ER -

Low frequency temperature forcing of chemical oscillations

Abstract

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