Modelling annular micromixers

James P. Gleeson; Olivia M. Roche; Jonathan West; Anne Gelb

Modelling annular micromixers

James P. Gleeson, Olivia M. Roche, Jonathan West, Anne Gelb

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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 Peclét number Pe, and on the geometry of the annulus. Three scaling regimes are identified: purely diffusive, Taylor-dispersive, and convection-dominated; each with a characteristic power-law dependence of T upon Pe. Consequences of these results for optimal micromixer design are discussed.

Original language	English
Title of host publication	2003 Nanotechnology Conference and Trade Show - Nanotech 2003
Editors	M. Laudon, B. Romanowicz
Pages	206-209
Number of pages	4
Publication status	Published - 2003
Externally published	Yes
Event	2003 Nanotechnology Conference and Trade Show - Nanotech 2003 - San Francisco, CA, United States Duration: 23 Feb 2003 → 27 Feb 2003

Publication series

Name	2003 Nanotechnology Conference and Trade Show - Nanotech 2003
Volume	1

Conference

Conference	2003 Nanotechnology Conference and Trade Show - Nanotech 2003
Country/Territory	United States
City	San Francisco, CA
Period	23/02/03 → 27/02/03

Keywords

Convection-diffusion
Microfluidics
Mixing
Peclét number
Taylor dispersion

Cite this

@inproceedings{d8290a6a69994d099b88a79cac3811a8,

title = "Modelling annular micromixers",

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 Pecl{\'e}t number Pe, and on the geometry of the annulus. Three scaling regimes are identified: purely diffusive, Taylor-dispersive, and convection-dominated; each with a characteristic power-law dependence of T upon Pe. Consequences of these results for optimal micromixer design are discussed.",

keywords = "Convection-diffusion, Microfluidics, Mixing, Pecl{\'e}t number, Taylor dispersion",

author = "Gleeson, {James P.} and Roche, {Olivia M.} and Jonathan West and Anne Gelb",

year = "2003",

language = "English",

isbn = "0972842209",

series = "2003 Nanotechnology Conference and Trade Show - Nanotech 2003",

pages = "206--209",

editor = "M. Laudon and B. Romanowicz",

booktitle = "2003 Nanotechnology Conference and Trade Show - Nanotech 2003",

note = "2003 Nanotechnology Conference and Trade Show - Nanotech 2003 ; Conference date: 23-02-2003 Through 27-02-2003",

}

Modelling annular micromixers. / Gleeson, James P.; Roche, Olivia M.; West, Jonathan et al.
2003 Nanotechnology Conference and Trade Show - Nanotech 2003. ed. / M. Laudon; B. Romanowicz. 2003. p. 206-209 (2003 Nanotechnology Conference and Trade Show - Nanotech 2003; Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Modelling annular micromixers

AU - Gleeson, James P.

AU - Roche, Olivia M.

AU - West, Jonathan

AU - Gelb, Anne

PY - 2003

Y1 - 2003

N2 - 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 Peclét number Pe, and on the geometry of the annulus. Three scaling regimes are identified: purely diffusive, Taylor-dispersive, and convection-dominated; each with a characteristic power-law dependence of T upon Pe. Consequences of these results for optimal micromixer design are discussed.

AB - 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 Peclét number Pe, and on the geometry of the annulus. Three scaling regimes are identified: purely diffusive, Taylor-dispersive, and convection-dominated; each with a characteristic power-law dependence of T upon Pe. Consequences of these results for optimal micromixer design are discussed.

KW - Convection-diffusion

KW - Microfluidics

KW - Mixing

KW - Peclét number

KW - Taylor dispersion

UR - http://www.scopus.com/inward/record.url?scp=6344243266&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:6344243266

SN - 0972842209

T3 - 2003 Nanotechnology Conference and Trade Show - Nanotech 2003

SP - 206

EP - 209

BT - 2003 Nanotechnology Conference and Trade Show - Nanotech 2003

A2 - Laudon, M.

A2 - Romanowicz, B.

T2 - 2003 Nanotechnology Conference and Trade Show - Nanotech 2003

Y2 - 23 February 2003 through 27 February 2003

ER -

Modelling annular micromixers

Abstract

Publication series

Conference

Keywords

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