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    Heat Transfer Measurements in a Supersonic Film Flow

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    No. of downloads: 275

    Date
    2016
    Author
    Adamson, Colin Sawyer
    Advisor
    Cadou, Christopher
    DRUM DOI
    https://doi.org/10.13016/M2WF7V
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    Abstract
    This thesis presents measurements of wall heat flux and flow structure in a canonical film cooling configuration with Mach 2.3 core flow in which the coolant is injected parallel to the wall through a two-dimensional louver. Four operating conditions are investigated: no film (i.e. flow over a rearward-facing step), subsonic film, pressure-matched film, and supersonic film. The overall objective is to provide a set of experimental data with well characterized boundary conditions that can be used for code validation. The results are compared to RANS and LES simulations which overpredict heat transfer in the subsonic film cases and underpredict heat transfer in supersonic cases after film breakdown. The thesis also describes a number of improvements that were made to the experimental facility including new Schlieren optics, a better film heater, more data at more locations, and a verification of the heat flux measurement hardware and data reduction methods.
    URI
    http://hdl.handle.net/1903/18424
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