Modelling annular micromixers
Modelling annular micromixers
Magnetohydrodynamic mixing of two fluids in an annular microchannel is modelled as a two-dimensional laminar convection-diffusion problem and examined using asymptotic analysis and numerical simulation. The time T required for mixing of a plug of solute depends on the Peclet number Pe and on the geometry of the annulus. Three scaling regimes are identified: purely diffusive, Taylor-dispersive, and convection-dominated; each has a characteristic power-law dependence of T upon Pe. Consequences of these results for optimal micromixer design are discussed.
laminar mixing, convection-diffusion, asymptotic analysis, microfluidics, laminar dispersion, vortex, flow
1294-1310
Gelb, Anne
9236c2be-647e-44a8-974d-33799c954d75
Gleeson, James P.
a37968a8-0c14-495c-8e82-aab2e8d4dca0
West, Jonathan
f1c2e060-16c3-44c0-af70-242a1c58b968
Roche, Olivia M.
85732f28-fa0d-482a-931c-92149b1df1be
2004
Gelb, Anne
9236c2be-647e-44a8-974d-33799c954d75
Gleeson, James P.
a37968a8-0c14-495c-8e82-aab2e8d4dca0
West, Jonathan
f1c2e060-16c3-44c0-af70-242a1c58b968
Roche, Olivia M.
85732f28-fa0d-482a-931c-92149b1df1be
Gelb, Anne, Gleeson, James P., West, Jonathan and Roche, Olivia M.
(2004)
Modelling annular micromixers.
SIAM Journal on Applied Mathematics, 64 (4), .
(doi:10.1137/S0036139902420407).
Abstract
Magnetohydrodynamic mixing of two fluids in an annular microchannel is modelled as a two-dimensional laminar convection-diffusion problem and examined using asymptotic analysis and numerical simulation. The time T required for mixing of a plug of solute depends on the Peclet number Pe and on the geometry of the annulus. Three scaling regimes are identified: purely diffusive, Taylor-dispersive, and convection-dominated; each has a characteristic power-law dependence of T upon Pe. Consequences of these results for optimal micromixer design are discussed.
This record has no associated files available for download.
More information
Published date: 2004
Additional Information:
ISI Document Delivery No.: 831HW
Times Cited: 27
Cited Reference Count: 16
Gleeson, JP Roche, OM West, J Gelb, A
Siam publications
Philadelphia
Keywords:
laminar mixing, convection-diffusion, asymptotic analysis, microfluidics, laminar dispersion, vortex, flow
Organisations:
Cancer Sciences
Identifiers
Local EPrints ID: 346430
URI: http://eprints.soton.ac.uk/id/eprint/346430
ISSN: 0036-1399
PURE UUID: 13905311-1134-42c1-b835-5a9f36fe9b6a
Catalogue record
Date deposited: 26 Feb 2013 13:48
Last modified: 15 Mar 2024 03:43
Export record
Altmetrics
Contributors
Author:
Anne Gelb
Author:
James P. Gleeson
Author:
Olivia M. Roche
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
