Flow and clogging behavior of mixtures of low-friction soft and frictional rigid spheres in a quasi-two-dimensional silo

ORAL

Abstract

Flow and clogging of a mixture of low-friction deformable beads with frictional hard beads of similar size were studied in a quasi-two-dimensional (2D) silo. Previous work has demonstrated that silo discharge is significantly different for low-friction deformable grains and conventional frictional hard particles. Here we show that the addition of a small amount of frictional hard beads to an ensemble of low-friction deformable beads already has significant consequences. We compare the outflow velocities and the duration of non-permanent clogs for different compositions of the mixtures. Experimental results are compared with numerical simulations.

*This project has received funding from the European Union's Horizon 2020 research and innovation program under the Marie Sklodowska-Curie grant agreement No. 812638. The Spanish MINECO (FIS2017-84631 PMINECO/AEI/FEDER, UE Projects) and the Hungarian NKFIH (grant No. OTKA K 116036) supported this work.

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Presenters

  • Bo Fan

    • Wigner Research Center for Physics

Authors

  • Bo Fan

    • Wigner Research Center for Physics

  • Jing Wang

    • Institute of Physics, Otto von Guericke University

  • Tivadar Pongó

    • Univ de Navarra
    • Física y Matemática Aplicada, Facultad de Ciencias, Universidad de Navarra

  • Kirsten Harth

    • Institute of Physics, Otto von Guericke University

  • Torsten Trittel

    • Institute of Physics, Otto von Guericke University

  • Ralf Stannarius

    • Institute of Physics, Otto von Guericke University

  • Maja Illig

    • Institute of Physics, Otto von Guericke University

  • Raúl Cruz Hidalgo

    • Univ de Navarra
    • Física y Matemática Aplicada, Facultad de Ciencias, Universidad de Navarra

  • Tamás Börzsönyi

    • Wigner Research Centre for Physics
    • Wigner Research Center for Physics