Two-Fluid electroosmotic flow in microchannels

T. N. Wong; Y. Gao; C. Wang; C. Yang; N. T. Nguyen; J. C. Chai; K. T. Ooi

doi:10.1115/MNHT2008-52054

Two-Fluid electroosmotic flow in microchannels

T. N. Wong, Y. Gao, C. Wang, C. Yang, N. T. Nguyen, J. C. Chai, K. T. Ooi

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

2 Citations (Scopus)

Abstract

This paper presents theoretical and experimental investigations of the pressure-driven two-liquid flow in microchannels with the electroosmosis effect. For a fully developed, steady state, laminar flow of two liquids combined the pressure gradient, electroosmosis and surface charges at the liquid-liquid interface, we have derived analytical solutions that relate the velocity profiles and flow rates to the liquid holdup, the aspect ratio of the microchannel, the viscosity ratio of the two liquids and the externally applied electric field. It was shown that adjusting the externally applied electric field could control the fluid interface position precisely. The prediction from the proposed model compares very well with measured data.

Original language	English
Title of host publication	2008 Proceedings of the ASME Micro/Nanoscale Heat Transfer International Conference, MNHT 2008
Pages	97-101
Number of pages	5
DOIs	https://doi.org/10.1115/MNHT2008-52054
Publication status	Published - 2008
Externally published	Yes
Event	1st ASME Micro/Nanoscale Heat Transfer International Conference, MNHT08 - Tainan, Taiwan, Province of China Duration: Jan 6 2008 → Jan 9 2008

Publication series

Name	2008 Proceedings of the ASME Micro/Nanoscale Heat Transfer International Conference, MNHT 2008
Volume	PART A

Conference

Conference	1st ASME Micro/Nanoscale Heat Transfer International Conference, MNHT08
Country/Territory	Taiwan, Province of China
City	Tainan
Period	1/6/08 → 1/9/08

Keywords

Electroosmosis
Interface
Microchannel
Two-liquid flow

ASJC Scopus subject areas

Mechanics of Materials
General Materials Science
Condensed Matter Physics
Atomic and Molecular Physics, and Optics

Access to Document

10.1115/MNHT2008-52054

Cite this

Wong, T. N., Gao, Y., Wang, C., Yang, C., Nguyen, N. T., Chai, J. C., & Ooi, K. T. (2008). Two-Fluid electroosmotic flow in microchannels. In 2008 Proceedings of the ASME Micro/Nanoscale Heat Transfer International Conference, MNHT 2008 (pp. 97-101). (2008 Proceedings of the ASME Micro/Nanoscale Heat Transfer International Conference, MNHT 2008; Vol. PART A). https://doi.org/10.1115/MNHT2008-52054

Two-Fluid electroosmotic flow in microchannels. / Wong, T. N.; Gao, Y.; Wang, C. et al.
2008 Proceedings of the ASME Micro/Nanoscale Heat Transfer International Conference, MNHT 2008. 2008. p. 97-101 (2008 Proceedings of the ASME Micro/Nanoscale Heat Transfer International Conference, MNHT 2008; Vol. PART A).

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

Wong, TN, Gao, Y, Wang, C, Yang, C, Nguyen, NT, Chai, JC & Ooi, KT 2008, Two-Fluid electroosmotic flow in microchannels. in 2008 Proceedings of the ASME Micro/Nanoscale Heat Transfer International Conference, MNHT 2008. 2008 Proceedings of the ASME Micro/Nanoscale Heat Transfer International Conference, MNHT 2008, vol. PART A, pp. 97-101, 1st ASME Micro/Nanoscale Heat Transfer International Conference, MNHT08, Tainan, Taiwan, Province of China, 1/6/08. https://doi.org/10.1115/MNHT2008-52054

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title = "Two-Fluid electroosmotic flow in microchannels",

abstract = "This paper presents theoretical and experimental investigations of the pressure-driven two-liquid flow in microchannels with the electroosmosis effect. For a fully developed, steady state, laminar flow of two liquids combined the pressure gradient, electroosmosis and surface charges at the liquid-liquid interface, we have derived analytical solutions that relate the velocity profiles and flow rates to the liquid holdup, the aspect ratio of the microchannel, the viscosity ratio of the two liquids and the externally applied electric field. It was shown that adjusting the externally applied electric field could control the fluid interface position precisely. The prediction from the proposed model compares very well with measured data.",

keywords = "Electroosmosis, Interface, Microchannel, Two-liquid flow",

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N2 - This paper presents theoretical and experimental investigations of the pressure-driven two-liquid flow in microchannels with the electroosmosis effect. For a fully developed, steady state, laminar flow of two liquids combined the pressure gradient, electroosmosis and surface charges at the liquid-liquid interface, we have derived analytical solutions that relate the velocity profiles and flow rates to the liquid holdup, the aspect ratio of the microchannel, the viscosity ratio of the two liquids and the externally applied electric field. It was shown that adjusting the externally applied electric field could control the fluid interface position precisely. The prediction from the proposed model compares very well with measured data.

AB - This paper presents theoretical and experimental investigations of the pressure-driven two-liquid flow in microchannels with the electroosmosis effect. For a fully developed, steady state, laminar flow of two liquids combined the pressure gradient, electroosmosis and surface charges at the liquid-liquid interface, we have derived analytical solutions that relate the velocity profiles and flow rates to the liquid holdup, the aspect ratio of the microchannel, the viscosity ratio of the two liquids and the externally applied electric field. It was shown that adjusting the externally applied electric field could control the fluid interface position precisely. The prediction from the proposed model compares very well with measured data.

KW - Electroosmosis

KW - Interface

KW - Microchannel

KW - Two-liquid flow

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Two-Fluid electroosmotic flow in microchannels

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

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