Inward propagating chemical waves in Taylor vortices

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

doi:10.1103/PhysRevE.81.047101

Inward propagating chemical waves in Taylor vortices

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

School of Psychology

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

Abstract

Advection-reaction-diffusion (ARD) waves in the Belousov-Zhabotinsky reaction in steady Taylor-Couette vortices have been visualized using magnetic-resonance imaging and simulated using an adapted Oregonator model. We show how propagating wave behavior depends on the ratio of advective, chemical and diffusive time scales. In simulations, inward propagating spiral flamelets are observed at high Damköhler number (Da). At low Da, the reaction distributes itself over several vortices and then propagates inwards as contracting ring pulses—also observed experimentally.

Original language	English
Article number	047101
Journal	Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume	81
DOIs	https://doi.org/10.1103/PhysRevE.81.047101
Publication status	Published - 28 Apr 2010

Bibliographical note

©2010 American Physical Society. Inward propagating chemical waves in Taylor vortices
Barnaby W. Thompson, Jan Novak, Mark C. T. Wilson, Melanie M. Britton, and Annette F. Taylor
Phys. Rev. E 81, 047101 – Published 28 April 2010

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10.1103/PhysRevE.81.047101

Inward propagating chemical waves in Taylor vortices
©2010 American Physical Society. Inward propagating chemical waves in Taylor vortices Barnaby W. Thompson, Jan Novak, Mark C. T. Wilson, Melanie M. Britton, and Annette F. Taylor Phys. Rev. E 81, 047101 – Published 28 April 2010
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abstract = "Advection-reaction-diffusion (ARD) waves in the Belousov-Zhabotinsky reaction in steady Taylor-Couette vortices have been visualized using magnetic-resonance imaging and simulated using an adapted Oregonator model. We show how propagating wave behavior depends on the ratio of advective, chemical and diffusive time scales. In simulations, inward propagating spiral flamelets are observed at high Damk{\"o}hler number (Da). At low Da, the reaction distributes itself over several vortices and then propagates inwards as contracting ring pulses—also observed experimentally.",

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AB - Advection-reaction-diffusion (ARD) waves in the Belousov-Zhabotinsky reaction in steady Taylor-Couette vortices have been visualized using magnetic-resonance imaging and simulated using an adapted Oregonator model. We show how propagating wave behavior depends on the ratio of advective, chemical and diffusive time scales. In simulations, inward propagating spiral flamelets are observed at high Damköhler number (Da). At low Da, the reaction distributes itself over several vortices and then propagates inwards as contracting ring pulses—also observed experimentally.

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Inward propagating chemical waves in Taylor vortices

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