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ISSN Online: 2377-424X

ISBN Print: 978-1-56700-421-2

International Heat Transfer Conference 15
August, 10-15, 2014, Kyoto, Japan

Multi-Scale Interfacial Phenomena and Heat Transfer Enhancement

Get access (open in a dialog) DOI: 10.1615/IHTC15.kn.000002
pages 21-40

Resumo

Recent inventions in micron- and submicron- scale systems driven by the rapidly expanding capability of micromachining technology have shown tremendous benefits in flow processes in many established and emerging fields of growing economic importance and great potential for innovation. The detailed understanding of the governing mechanism are at the heart of realizing many future technologies, but poses several new challenges relating multidisciplinary scientific areas: surface energy becomes increasingly important at the micron- and submicron- scales and processes turn out to be largely affected by the physical geometry of the domain and the molecular structure of the surface. Interfacial transport phenomena integrate information from microfluidics, surface chemistry, biological sciences, micro fabrication, to develop research dedicated to improve an in-depth understanding of the basic physics in the above fields, as well as to provide useful information for direct applications. It refers to mass, momentum, energy and entropy transfer across and along fluid/fluid and fluid/solid interfaces, including the interfacial kinetics in multiphase combustion systems. In this context, wettability becomes an important influential parameter which can be changed by chemically treatment, patterning, or only different material deposition onto the surface. New micro/nano structured surface fabrication techniques allow tailoring special lyophobic and lyophilic mixed surfaces with great potential for miniaturized heat transfer devices and are currently driving a renewable research interest for both, experimental and theoretical, studies in multi-scale transport phenomena. This paper intends to review the interfacial transport phenomena from the perspective of their potential to enhance both, the heat transfer.