Inward propagating chemical waves in Taylor vortices
Inward propagating chemical waves in Taylor vortices
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.
Thompson, B.W.
65100e83-7fef-4db2-b2e7-080105826665
Novak, J.
94837595-5836-4d0c-a8b2-d4fc89b59197
Wilson, M.C.T.
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Britton, M.M.
29f41f3f-7b7e-4c9f-8126-875cc9373bc3
Taylor, A.F.
08028a29-428d-4732-b6b1-f7a93389b386
28 April 2010
Thompson, B.W.
65100e83-7fef-4db2-b2e7-080105826665
Novak, J.
94837595-5836-4d0c-a8b2-d4fc89b59197
Wilson, M.C.T.
12bd015f-9e26-4a59-9fcf-83048841c2f6
Britton, M.M.
29f41f3f-7b7e-4c9f-8126-875cc9373bc3
Taylor, A.F.
08028a29-428d-4732-b6b1-f7a93389b386
Thompson, B.W., Novak, J., Wilson, M.C.T., Britton, M.M. and Taylor, A.F.
(2010)
Inward propagating chemical waves in Taylor vortices.
Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, E81, [047101].
(doi:10.1103/PhysRevE.81.047101).
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.
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Published date: 28 April 2010
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Local EPrints ID: 499615
URI: http://eprints.soton.ac.uk/id/eprint/499615
ISSN: 1539-3755
PURE UUID: aa8f5445-63e7-4d1a-aa6d-1edb92e7b416
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Date deposited: 27 Mar 2025 18:13
Last modified: 28 Mar 2025 03:15
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Contributors
Author:
B.W. Thompson
Author:
J. Novak
Author:
M.C.T. Wilson
Author:
M.M. Britton
Author:
A.F. Taylor
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