Film-Boiling Drag And Heat-Transfer On A Flat Surface

    Authors

    P. R. Chappidi; F. S. Gunnerson;K. O. Pasamehmetoglu

    Comments

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    Abbreviated Journal Title

    Numer. Heat Tranf. A-Appl.

    Keywords

    CONVECTION; Thermodynamics; Mechanics

    Abstract

    Stable film-boiling flow along a vertical flat plate is analyzed theoretically for a water-steam system at atmospheric pressure. This numerical study indicates that skin friction drag on the plate in a film-boiling flow may increase or decrease relative to the single-phase (all liquid) flow level and that the wall heat transfer coefficient always deteriorates in a film-boiling flow. Subcooling promotes wall heat transfer but may increase or decrease the wall skin friction beyond the single-phase flow level. Adverse streamwise buoyancy force (simulated by downward film-boiling flow) acting on the vapor film will separate the vapor flow.

    Journal Title

    Numerical Heat Transfer Part a-Applications

    Volume

    19

    Issue/Number

    3

    Publication Date

    1-1-1991

    Document Type

    Article

    Language

    English

    First Page

    327

    Last Page

    344

    WOS Identifier

    WOS:A1991FH43700005

    ISSN

    1040-7782

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