0

Full Content is available to subscribers

Subscribe/Learn More  >

Marangoni Convection in Capillary Tubes Filled With Volatile Liquids

[+] Author Affiliations
C. Buffone, K. Sefiane

University of Edinburgh, Edinburgh, UK

Paper No. ICMM2003-1082, pp. 651-657; 7 pages
doi:10.1115/ICMM2003-1082
From:
  • ASME 2003 1st International Conference on Microchannels and Minichannels
  • 1st International Conference on Microchannels and Minichannels
  • Rochester, New York, USA, April 24–25, 2003
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 0-7918-3667-3
  • Copyright © 2003 by ASME

abstract

The work is an experimental investigation of the evaporation process from a liquid meniscus formed in capillary tubes of various sizes (ranging from 200 to 900 μm). The results have been compared with those of a previous analytical work and show how the strong convection in the liquid phase is responsible for the discrepancy found. In the analytical prediction the evaporation process is sustained only by diffusion and in this model the meniscus position vs. time is a linear function of the tube size; instead, our experimental results show how this parameter is inversely correlated with the pore size. The surface roughness of the tubes was characterized and particular care has been devoted to the capillaries’ cleaning procedure from which wetting properties are strongly dependent. Marangoni convection prevails at tube sizes less than one millimeter in diameter as in the present case, while at larger sizes a coupling between Marangoni and Rayleigh convection is expected. The Marangoni roll of thoroidal shape in the liquid phase has been visualized and characterized using seeding particles. As pointed out clearly in the present study, Marangoni convection enhances the heat-mass transfer from a pore.

Copyright © 2003 by ASME
Topics: Convection

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In