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    A Potential Flow Model of a Fire Sprinkler Head

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    No. of downloads: 541

    Date
    2014
    Author
    Myers, Taylor Macks
    Advisor
    Marshall, Andre W
    DRUM DOI
    https://doi.org/10.13016/M28606
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    Abstract
    Understanding fire sprinkler sprays fills a critical gap in the modeling of fire suppression systems. Previous research has shown that a modeling framework consisting of an instability model coupled with a stochastic transport model can paint most of the sprinkler spray picture, but requires input in the form of the thickness and velocity of unstable fluid sheets. The model outlined forgoes traditional CFD to solve for water jet-deflector interactions, and instead describes the sheet formation as a potential flow boundary value problem, utilizing a free surface formulation and the superposition of the Green's function. The resulting model allows for the determination of the complete flow field over a fire sprinkler head of arbitrary geometry and input conditions. A hypothetical axisymmetric sprinkler is explored to provide insight into the impact of sprinkler head geometry on local fluid as well as complete spray behavior. The resulting flow splits, sheet thicknesses, and sheet velocities are presented for various sprinkler head geometries.
    URI
    http://hdl.handle.net/1903/16058
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    • Fire Protection Engineering Theses and Dissertations
    • UMD Theses and Dissertations

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