Modelling of Three-Dimensional Jet Impingement Cooling on a Concave Surface

    Research output: Chapter in Book/Report/Conference proceedingConference contribution


    The paper reports computations of the flow and heattransfer from a round jet impinging onto a concave semicircular surface, designed to reproduce important flow features found in internal turbine blade cooling applications. Linear and non-linear eddy-viscosity models are applied, with wall-functions to cover the near-wall layer, and are shown to capture the overall flow characteristics. The standard, loglaw based, form of wall-function is found to be inadequate in predicting the heat-transfer, and a more advanced form developed at Manchester (the AWF) is also tested. The exact way in which convective terms are approximated in this latter approach is shown to be crucial, and a form is presented which leads to stable and reasonably accurate solutions.
    Original languageEnglish
    Title of host publication7th European Turbomachinery Conference, Athens
    Number of pages6
    Publication statusPublished - Aug 2007
    Event7th European Turbomachinery Conference, Athens -
    Duration: 1 Jan 1824 → …


    Conference7th European Turbomachinery Conference, Athens
    Period1/01/24 → …


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