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Lattice Boltzmann method used to simulate particle motion in a conduit

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    0467027 - ÚH 2018 RIV SK eng J - Journal Article
    Dolanský, Jindřich - Chára, Zdeněk - Vlasák, Pavel - Kysela, Bohuš
    Lattice Boltzmann method used to simulate particle motion in a conduit.
    Journal of Hydrology and Hydromechanics. Roč. 65, č. 2 (2017), s. 105-113. ISSN 0042-790X. E-ISSN 1338-4333
    R&D Projects: GA ČR GA15-18870S
    Institutional support: RVO:67985874
    Keywords : Lattice Boltzmann method * particle motion * particle–fluid interaction * PIV * particle tracking
    OECD category: Fluids and plasma physics (including surface physics)
    Impact factor: 1.714, year: 2017

    A three-dimensional numerical simulation of particle motion in a pipe with a rough bed is presented. The simulation based on the Lattice Boltzmann Method (LBM) employs the hybrid diffuse bounce-back approach to model moving boundaries. The bed of the pipe is formed by stationary spherical particles of the same size as the moving particles. Particle movements are induced by gravitational and hydrodynamic forces. To evaluate the hydrodynamic forces, the Momentum Exchange Algorithm is used. The LBM unified computational frame makes it possible to simulate both the particle motion and the fluid flow and to study mutual interactions of the carrier liquid flow and particles and the particle-bed and particle-particle collisions. The trajectories of simulated and experimental particles are compared. The Particle Tracking method is used to track particle motion. The correctness of the applied approach is assessed.
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