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    Laminar convective heat transfer in a microchannel with internal longitudinal fins

    Access Status
    Fulltext not available
    Authors
    Foong Jun Li, Andrew
    Narayanaswamy, Ramesh
    Chandratilleke, Tilak
    Date
    2009
    Type
    Journal Article
    
    Metadata
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    Citation
    Foong J. L. Andrew and Ramesh N. and Chandratilleke, Tilak T. 2009. Laminar convective heat transfer in a microchannel with internal longitudinal fins. International Journal of Thermal Sciences. 48 (10): pp. 1908-1913.
    Source Title
    International Journal of Thermal Sciences
    DOI
    10.1016/j.ijthermalsci.2009.02.015
    ISSN
    12900729
    School
    Department of Mechanical Engineering
    URI
    http://hdl.handle.net/20.500.11937/39543
    Collection
    • Curtin Research Publications
    Abstract

    A numerical study was conducted to investigate the fluid flow and heat transfer characteristics of a square microchannel with four longitudinal internal fins. Three-dimensional numerical simulations were performed on the microchannel with variable fin height ratio in the presence of a hydrodynamically developed, thermally developing laminar flow. Constant heat flux boundary conditions were assumed on the external walls of the square microchannel. Results of the average local Nusselt number distribution along the channel length were obtained as a function of the fin height ratio. The analysis was carried out for different fin heights and flow parameters. Interesting observations that provide more physical insight on this passive enhancement technique, and the existence of an optimum fin height are brought out in the present study.

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