Lattice Boltzmann method used to simulate particle motion in a conduit
| Autor: | Bohus Kysela, Zdeněk Chára, Jindřich Dolanský, Pavel Vlasak |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Fluid Flow and Transfer Processes
Physics HPP model Mechanical Engineering 0208 environmental biotechnology Lattice Boltzmann methods Hydraulic engineering 02 engineering and technology particle tracking 020801 environmental engineering Physics::Fluid Dynamics lattice boltzmann method piv Classical mechanics Electrical conduit particle motion particle–fluid interaction Statistical physics TC1-978 Magnetosphere particle motion Water Science and Technology |
| Zdroj: | Journal of Hydrology and Hydromechanics, Vol 65, Iss 2, Pp 105-113 (2017) |
| ISSN: | 0042-790X |
| DOI: | 10.1515/johh-2017-0008 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|