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Original title:
Simulation of particle motion in a closed conduit validated against experimental data
Authors: Dolanský, Jindřich
Document type: Papers
Conference/Event: Experimental Fluid Mechanics 2014, Český Krumlov (CZ), 2014-11-18 / 2014-11-21
Year: 2014
Language: eng
Abstract: Motion of a number of spherical particles in a closed conduit is examined by means of both simulation and experiment. The bed of the conduit is covered by stationary spherical particles of the size of the moving particles. The flow is driven by experimentally measured velocity profiles which are inputs of the simulation. Altering input velocity profiles generates various trajectory patterns. The lattice Boltzmann method (LBM) based simulation is developed to study mutual interactions of the flow and the particles. The simulation enables to model both the particle motion and the fluid flow. The entropic LBM is employed to deal with the flow characterized by the high Reynolds number. The entropic modification of the LBM along with the enhanced refinement of the lattice grid yield an increase in demands on computational resources. Due to the inherently parallel nature of the LBM it can be handled by employing the Parallel Computing Toolbox (MATLAB) and other transformations enabling usage of the CUDA GPU computing technology. The trajectories of the particles determined within the LBM simulation are validated against data gained from the experiments. The compatibility of the simulation results with the outputs of experimental measurements is evaluated. The accuracy of the applied approach is assessed and stability and efficiency of the simulation is also considered.
Keywords: lattice Boltzmann method (LBM); particle motion; simulations
Project no.: GAP105/10/1574 (CEP)
Funding provider: GA ČR
Host item entry: Proceedings of the International conference Experimental Fluid Mechanics 2014, ISSN 2100-014X
Institution: Institute of Hydrodynamics AS ČR (web)
Document availability information: Fulltext is available on demand via the digital repository of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0240446
Permalink: http://www.nusl.cz/ntk/nusl-178154
The record appears in these collections:
Research > Institutes ASCR > Institute of Hydrodynamics
Conference materials > Papers
Authors: Dolanský, Jindřich
Document type: Papers
Conference/Event: Experimental Fluid Mechanics 2014, Český Krumlov (CZ), 2014-11-18 / 2014-11-21
Year: 2014
Language: eng
Abstract: Motion of a number of spherical particles in a closed conduit is examined by means of both simulation and experiment. The bed of the conduit is covered by stationary spherical particles of the size of the moving particles. The flow is driven by experimentally measured velocity profiles which are inputs of the simulation. Altering input velocity profiles generates various trajectory patterns. The lattice Boltzmann method (LBM) based simulation is developed to study mutual interactions of the flow and the particles. The simulation enables to model both the particle motion and the fluid flow. The entropic LBM is employed to deal with the flow characterized by the high Reynolds number. The entropic modification of the LBM along with the enhanced refinement of the lattice grid yield an increase in demands on computational resources. Due to the inherently parallel nature of the LBM it can be handled by employing the Parallel Computing Toolbox (MATLAB) and other transformations enabling usage of the CUDA GPU computing technology. The trajectories of the particles determined within the LBM simulation are validated against data gained from the experiments. The compatibility of the simulation results with the outputs of experimental measurements is evaluated. The accuracy of the applied approach is assessed and stability and efficiency of the simulation is also considered.
Keywords: lattice Boltzmann method (LBM); particle motion; simulations
Project no.: GAP105/10/1574 (CEP)
Funding provider: GA ČR
Host item entry: Proceedings of the International conference Experimental Fluid Mechanics 2014, ISSN 2100-014X
Institution: Institute of Hydrodynamics AS ČR (web)
Document availability information: Fulltext is available on demand via the digital repository of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0240446
Permalink: http://www.nusl.cz/ntk/nusl-178154
The record appears in these collections:
Research > Institutes ASCR > Institute of Hydrodynamics
Conference materials > Papers
Record created 2014-12-11, last modified 2021-11-24