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  • Delay of wetting propagation during jet impingement quenching for a high temperature surface

    Author(s)
    Mozumder, AK
    Monde, M
    Woodfield, PL
    Griffith University Author(s)
    Woodfield, Peter L.
    Year published
    2005
    Metadata
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    Abstract
    Transient heat transfer has been investigated experimentally with a subcooled water jet during quenching of hot cylindrical blocks made of copper, brass and steel for initial surface temperatures from 250 to 400 î The jet velocity was from 3 to 15 m/s and jet subcooling from 5 to 80 K with a jet diameter of 2 mm. When the jet strikes the hot surface, the wetting front becomes stagnant for a certain period of time in a small central region before wetting the entire surface. This wetting delay may be described as the resident time which is a strong function of block material and jet subcooling and also a function of initial ...
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    Transient heat transfer has been investigated experimentally with a subcooled water jet during quenching of hot cylindrical blocks made of copper, brass and steel for initial surface temperatures from 250 to 400 î The jet velocity was from 3 to 15 m/s and jet subcooling from 5 to 80 K with a jet diameter of 2 mm. When the jet strikes the hot surface, the wetting front becomes stagnant for a certain period of time in a small central region before wetting the entire surface. This wetting delay may be described as the resident time which is a strong function of block material and jet subcooling and also a function of initial block temperature and jet velocity. New correlations for the resident time and the surface temperature at the resident time at the wetting front have been proposed.
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    Journal Title
    International journal of heat and mass transfer
    Volume
    48
    Issue
    25-26
    DOI
    https://doi.org/10.1016/j.ijheatmasstransfer.2005.06.034
    Subject
    Mechanical Engineering not elsewhere classified
    Mathematical Sciences
    Physical Sciences
    Engineering
    Publication URI
    http://hdl.handle.net/10072/57993
    Collection
    • Journal articles

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