Full Content is available to subscribers

Subscribe/Learn More  >

Analysis on Evaporation of Extended Thin Film Meniscus in Capillary Microstructure

[+] Author Affiliations
Xiaoze Du, Lijun Yang, Yongping Yang, Na Zhao, Haizhen Xian

North China Electric Power University, Beijing, China

Paper No. HT2009-88042, pp. 55-62; 8 pages
  • ASME 2009 Heat Transfer Summer Conference collocated with the InterPACK09 and 3rd Energy Sustainability Conferences
  • Volume 2: Theory and Fundamental Research; Aerospace Heat Transfer; Gas Turbine Heat Transfer; Computational Heat Transfer
  • San Francisco, California, USA, July 19–23, 2009
  • Conference Sponsors: Heat Transfer Division
  • ISBN: 978-0-7918-4357-4 | eISBN: 978-0-7918-3851-8
  • Copyright © 2009 by ASME


The surface evaporation of the extended meniscus liquid film in the micro channel driven by the capillary force is of the key process in a lot of heat sink and thermal management equipments. The physio-mathematical model was established considering the variation of the apparent contact angle to describe the configuration of the total extended thin film region, including that of equilibrium, interline and intrinsic meniscus regions. In additions, the minimum energy principle was employed to determine the range of thin film interline region. The results indicate that the range of thin film interline region is quite small in the total extended film region, nevertheless the variation of its surface temperature is much obvious, implying that the resulted Maragoni effect can cause great “pump” force to drive the film flow, which may be the main contribution of the interline region to the total extended thin film evaporation. The variations of evaporating rate, and also the resulted mean velocity of liquid film in the thin film interline region under different wall temperature and apparent contact angle were revealed, which showed that there existed the local maximum value of evaporating rate in this region by the coupled influences of the decreased film thickness and variation of the interface temperature.

Copyright © 2009 by ASME



Interactive Graphics


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

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