Journal of Enhanced Heat Transfer Theory and Application in High Performance Heat and Mass Transfer

ISSN for PRINT: 1065-5131

For Online Access

Best Paper Award Selection - Editorial Board Site

2002, Volume9

Issue 3&4

59 pages

Issue price - $276.00

Wei Qu
Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing, 100080, P.R. China

Lichun Zhang
Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei, China

Dr. Tongze Ma
Institute of Engineering Thermophysics, Chinese Academy of Sciences, P.O. Box 2706, Beijing, 100080, P.R. China

Xinshi Ge
Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei, China

The evaporation, profile, and position of a thin liquid film and meniscus formed in microscale spaces with periodic nanorelief on the wall are investigated. The geometries of interest are capillary tubes and planar channels of micronscale. The effects of substrate nanorelief are theoretically investigated, and the coupling mechanisms of flow and heat transfer are analyzed. The thicknesses of thin liquid film on substrates are measured by an interferometer of relative laser intensity. The results demonstrate that the nanoscale roughness of the surfaces influences the heat transfer, liquid film formation, and dry-out region essentially by affecting the adsorptive potential. The measured thicknesses of the thin liquid film agree well with the analytical values.

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