Mathematical and experimental study on backward flow in a surface tension driven micropump

Jongil Ju; Joong Yull Park; Erwin Berthier; David J. Beebe; Sang Hoon Lee

Mathematical and experimental study on backward flow in a surface tension driven micropump

Jongil Ju, Joong Yull Park, Erwin Berthier, David J. Beebe, Sang Hoon Lee

Department of Bio-convergence Engineering

Research output: Contribution to conference › Paper › peer-review

1 Citation (Scopus)

Abstract

A surface tension driven micropump proves to be a simple and attractive passive method to drive fluid flow in microdevices. We observed the appearance of a backward flow. Consideration of inertia of the fluid in the channel revealed that it alone is insufficient to explain the observed backward flow. We discovered that rotational flow inside the outlet droplet could be a source of inertia explaining the generation of the backward flow. We have determined that the volumes ratio of the initial outlet- inlet drop correlate with the occurrence of the backward flow.

Original language	English
Pages	44-46
Number of pages	3
Publication status	Published - 2008
Event	12th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2008 - San Diego, CA, United States Duration: 2008 Oct 12 → 2008 Oct 16

Other

Other	12th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2008
Country/Territory	United States
City	San Diego, CA
Period	08/10/12 → 08/10/16

Keywords

Backward flow
Surface tension driven pump

ASJC Scopus subject areas

Chemical Engineering (miscellaneous)
Bioengineering

Cite this

Mathematical and experimental study on backward flow in a surface tension driven micropump. / Ju, Jongil; Park, Joong Yull; Berthier, Erwin et al.
2008. 44-46 Paper presented at 12th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2008, San Diego, CA, United States.

Research output: Contribution to conference › Paper › peer-review

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abstract = "A surface tension driven micropump proves to be a simple and attractive passive method to drive fluid flow in microdevices. We observed the appearance of a backward flow. Consideration of inertia of the fluid in the channel revealed that it alone is insufficient to explain the observed backward flow. We discovered that rotational flow inside the outlet droplet could be a source of inertia explaining the generation of the backward flow. We have determined that the volumes ratio of the initial outlet- inlet drop correlate with the occurrence of the backward flow.",

keywords = "Backward flow, Surface tension driven pump",

author = "Jongil Ju and Park, {Joong Yull} and Erwin Berthier and Beebe, {David J.} and Lee, {Sang Hoon}",

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note = "12th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2008 ; Conference date: 12-10-2008 Through 16-10-2008",

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T1 - Mathematical and experimental study on backward flow in a surface tension driven micropump

AU - Ju, Jongil

AU - Park, Joong Yull

AU - Berthier, Erwin

AU - Beebe, David J.

AU - Lee, Sang Hoon

PY - 2008

Y1 - 2008

N2 - A surface tension driven micropump proves to be a simple and attractive passive method to drive fluid flow in microdevices. We observed the appearance of a backward flow. Consideration of inertia of the fluid in the channel revealed that it alone is insufficient to explain the observed backward flow. We discovered that rotational flow inside the outlet droplet could be a source of inertia explaining the generation of the backward flow. We have determined that the volumes ratio of the initial outlet- inlet drop correlate with the occurrence of the backward flow.

AB - A surface tension driven micropump proves to be a simple and attractive passive method to drive fluid flow in microdevices. We observed the appearance of a backward flow. Consideration of inertia of the fluid in the channel revealed that it alone is insufficient to explain the observed backward flow. We discovered that rotational flow inside the outlet droplet could be a source of inertia explaining the generation of the backward flow. We have determined that the volumes ratio of the initial outlet- inlet drop correlate with the occurrence of the backward flow.

KW - Backward flow

KW - Surface tension driven pump

UR - http://www.scopus.com/inward/record.url?scp=84875203061&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:84875203061

SP - 44

EP - 46

T2 - 12th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2008

Y2 - 12 October 2008 through 16 October 2008

ER -

Mathematical and experimental study on backward flow in a surface tension driven micropump

Abstract

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Keywords

ASJC Scopus subject areas

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