Flow focusing in microchannels

Davidson, M. R., Harvie, J. E. and Cooper-White, J. J. (2004). Flow focusing in microchannels. In: Proceedings Computational Techniques and Applications Conference. 12th Biennial Computational Techniques and Applications Conference, Melbourne, Australia, (C47-C58). 27 September - 1 October 2004. doi:10.0000/anziamj.v46i0.946

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Author Davidson, M. R.
Harvie, J. E.
Cooper-White, J. J.
Title of paper Flow focusing in microchannels
Conference name 12th Biennial Computational Techniques and Applications Conference
Conference location Melbourne, Australia
Conference dates 27 September - 1 October 2004
Proceedings title Proceedings Computational Techniques and Applications Conference   Check publisher's open access policy
Journal name ANZIAM Journal   Check publisher's open access policy
Place of Publication Cambridge, United Kingdom
Publisher Cambridge University Press
Publication Year 2004
Sub-type Fully published paper
DOI 10.0000/anziamj.v46i0.946
Open Access Status DOI
ISSN 1446-1811
Volume 46
Issue 5
Start page C47
End page C58
Total pages 12
Language eng
Abstract/Summary A volume-of-fluid numerical method is used to predict the dynamics of drop formation in an axi-symmetric microfluidic flow-focusing geometry for a liquid-liquid system. The Reynolds numbers and Weber numbers approximate those of a three-dimensional flow in recently published experiments. We compare the predicted drop formation with the experimental results at various flow rates, and discuss the mechanisms of drop formation in this context. Despite the differences in geometry, we find qualitative correspondence between the numerical and experimental results. Both end-pinching and capillary-wave instability are important for droplet break-up at the higher flow rates.
Subjects C1
290600 Chemical Engineering
780103 Chemical sciences
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status Unknown

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Created: Wed, 15 Aug 2007, 07:53:25 EST