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Interfacial Fluid Dynamics and Transport Processes pp 263–289Cite as

Thermocapillary Droplet Migration on an Inclined Solid Surface

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Part of the book series: Lecture Notes in Physics ((LNP,volume 628))

Abstract

Active control of the position of a liquid droplet on a solid surface is a crucial part in the design of discrete fluid management technology for microfluidic applications. One way to accomplish this control is to impose specially shaped thermal fields upon the droplet and/or the solid surface. The imposed temperature gradient produces a surface-tension-driven flow inside the droplet that forces the motion of the contact line. When the imposed temperature gradient is large enough, this motion causes the droplet to migrate in the direction of decreasing temperature. In this paper, a detailed lubrication theory is presented that describes this internal flow and the subsequent contact-line motion in a thin droplet. Results are presented to show that this technique can be used to drive a droplet up an inclined solid surface against the force of gravity.

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Author information

Authors and Affiliations

  1. The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332-0405, USA

    Marc K. Smith & Cavelle P. Benjamin IV

  2. Department of Mechanical and Aerospace Engineering, University of Dayton, Dayton, Ohio, 45469, USA

    Steven W. Benintendi

Authors
  1. Marc K. Smith
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  2. Steven W. Benintendi
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  3. Cavelle P. Benjamin IV
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Editor information

Editors and Affiliations

  1. Department of Chemical Engeneering, Bifurcation and Nonlinear Instability Lab., University of Florida, 32611-9103, Gainesville, Florida, USA

    Ranga Narayanan

  2. I. Physikalisches Institut, Justus-Liebig-Universität Giessen, Heinrich-Buff-Ring 16, 35390, Gießen, Germany

    Dietrich Schwabe

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© 2003 Springer-Verlag Berlin Heidelberg

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Smith, M.K., Benintendi, S.W., Benjamin, C.P. (2003). Thermocapillary Droplet Migration on an Inclined Solid Surface. In: Narayanan, R., Schwabe, D. (eds) Interfacial Fluid Dynamics and Transport Processes. Lecture Notes in Physics, vol 628. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-45095-5_13

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  • DOI: https://doi.org/10.1007/978-3-540-45095-5_13

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-07362-5

  • Online ISBN: 978-3-540-45095-5

  • eBook Packages: Springer Book Archive

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