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Modeling of Low-Capillary Number Segmented Flows in Microchannels Using Openfoam

Modeling of Low-Capillary Number Segmented Flows in Microchannels Using Openfoam, D. A. Hoang, V. van Steijn, L. M. Portela, M. T. Kreutzer, and C. R. Kleijn. In Numerical Analysis and Applied Mathematics (Icnaam 2012), Vols a and B, pp. 86–89, 2012.

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Abstract

Modeling of low-Capillary number segmented flows in microchannels is important for the design of microfluidic devices. We present numerical validations of microfluidic flow simulations using the volume-of-fluid (VOF) method as implemented in OpenFOAM. Two benchmark cases were investigated to ensure the reliability of OpenFOAM in modeling complex physical phenomena in microfluidics, viz. 1) the steady motion of bubbles in capillaries, and 2) the formation of bubbles in T-junctions. We found that it is crucial to reduce spurious currents and to apply local grid refinement to capture the relevant flow physics. With these, we obtain good agreement between our numerical simulations and previously published theoretical and experimental data.

BibTeX

@inproceedings{ ISI:000310698100020,
Author = {Hoang, D. A. and van Steijn, V. and Portela, L. M. and Kreutzer, M. T. and Kleijn, C. R.},
Editor = {Simos, TE and Psihoyios, G and Tsitouras, C and Anastassi, Z},
Title = {Modeling of Low-Capillary Number Segmented Flows in Microchannels Using Openfoam},
Booktitle = {Numerical Analysis and Applied Mathematics (Icnaam 2012), Vols a and B},
Series = {AIP Conference Proceedings},
Year = {2012},
Volume = {1479},
Pages = {86-89},
Note = {},
Organization = {European Soc Computat Methods Sci, Engn \& Technol (ESCMSET); R M Santilli Fdn},
Abstract = {Modeling of low-Capillary number segmented flows in microchannels is important for the design of microfluidic devices. We present numerical validations of microfluidic flow simulations using the volume-of-fluid (VOF) method as implemented in OpenFOAM. Two benchmark cases were investigated to ensure the reliability of OpenFOAM in modeling complex physical phenomena in microfluidics, viz. 1) the steady motion of bubbles in capillaries, and 2) the formation of bubbles in T-junctions. We found that it is crucial to reduce spurious currents and to apply local grid refinement to capture the relevant flow physics. With these, we obtain good agreement between our numerical simulations and previously published theoretical and experimental data.},
DOI = {10.1063/1.4756069},
ISSN = {0094-243X},
ISBN = {978-0-7354-1091-6},
ResearcherID-Numbers = {Kreutzer, Michiel/F-3130-2010},
Unique-ID = {ISI:000310698100020},
}

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