Numerical simulation of solidification phenomena of single molten droplet on flat plate using E-MPS method

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Author(s)

    • KONDO Shinichiro
    • Department of Mechanical Engineering, Faculty of Engineering, Tokyo University of Science
    • MAMORI Hiroya
    • Department of Mechanical and Intelligent Systems Engineering, Faculty of Informatics and Engineering, The University of Electro-Communications
    • FUKUSHIMA Naoya
    • Department of Prime Mover Engineering, Faculty of Engineering, Tokai University
    • FUKUDOME Koji
    • Department of Mechanical Engineering, Faculty of Engineering, Tokyo University of Science
    • YAMAMOTO Makoto
    • Department of Mechanical Engineering, Faculty of Engineering, Tokyo University of Science

Abstract

<p>When sand particles and volcanic ash are ingested into jet engines, they become molten droplets and are solidified on the surfaces of the turbine blades and endwalls. This is called the deposition phenomenon, and it causes serious problems in the aircraft, e.g., deterioration of the turbine performance and disturbing the cooling flow of the turbine blade. Therefore, the mechanism of the deposition phenomenon should be clarified in order to predict or prevent engine failure. In the present study, we perform three-dimensional numerical simulations of the deposition behavior of a single molten droplet on a cooled substrate using an explicit-moving particle simulation method. The results show a reasonable agreement with the experimental data. We confirm the formation of finger-like-structures that have the characteristic shape of a droplet that has adhered to an edge, and we also investigate effects of the impact angle on the deposition phenomenon.</p>

Journal

  • Journal of Fluid Science and Technology

    Journal of Fluid Science and Technology 13(3), JFST0013-JFST0013, 2018

    The Japan Society of Mechanical Engineers

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