Numerical simulation of industrial die filling using the discrete element method

Yuki Tsunazawa, Yusuke Shigeto, Chiharu Tokoro, Mikio Sakai

    Research output: Contribution to journalArticle

    17 Citations (Scopus)

    Abstract

    Die filling is an important aspect of powder molding in chemical engineering. The discrete element method (DEM) has been applied to simulations of die filling systems in the literature. In these simulations, the die has been modeled by simple shapes such as cylinders and cuboids. However, industries require modeling of complex die shapes in the computations. In addition, the existing DEM is problematic from the viewpoint of industrial applications, since complexly shaped dies might not be modeled by existing technologies. To solve this problem, the signed distance function (SDF) model is applied to the DEM simulation (DEM/SDF) and the DEM/SDF approach is validated for arbitrarily shaped dies. Focusing on macroscopic powder flow, simulation results are compared with experimental results, and good agreement is confirmed for the spatial distribution of velocity, the projection areas of the shoe, and the final mass of filling particles. Therefore, the adequacy of the DEM/SDF model is newly demonstrated in the die filling system; i.e., the DEM/SDF method is shown to be an effective method for the numerical simulation of particle flow into arbitrarily shaped dies.

    Original languageEnglish
    Pages (from-to)791-809
    Number of pages19
    JournalChemical Engineering Science
    Volume138
    DOIs
    Publication statusPublished - 2015 Dec 22

    Fingerprint

    Discrete Element Method
    Finite difference method
    Die
    Distance Function
    Signed
    Numerical Simulation
    Computer simulation
    Powders
    Powder
    Cuboid
    Flow simulation
    Chemical engineering
    Molding
    Flow Simulation
    Spatial distribution
    Industrial applications
    Industrial Application
    Spatial Distribution
    Simulation Methods
    Simulation

    Keywords

    • Die filling
    • Discrete element method
    • Filling process
    • Powder flow
    • Powder metallurgy

    ASJC Scopus subject areas

    • Chemical Engineering(all)
    • Chemistry(all)
    • Applied Mathematics
    • Industrial and Manufacturing Engineering

    Cite this

    Numerical simulation of industrial die filling using the discrete element method. / Tsunazawa, Yuki; Shigeto, Yusuke; Tokoro, Chiharu; Sakai, Mikio.

    In: Chemical Engineering Science, Vol. 138, 22.12.2015, p. 791-809.

    Research output: Contribution to journalArticle

    Tsunazawa, Yuki ; Shigeto, Yusuke ; Tokoro, Chiharu ; Sakai, Mikio. / Numerical simulation of industrial die filling using the discrete element method. In: Chemical Engineering Science. 2015 ; Vol. 138. pp. 791-809.
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