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In this paper, the capability of two major methods for modelling two-phase flow systems, coupled discrete element method and computational fluid dynamics (DEM-CFD) and smoothed particle hydrodynamics and discrete element method (SPH-DEM), is investigated. The particle phase is modelled using the discrete element method DEM, while the fluid phase is described using either a mesh-based (CFD) or a mesh-less (SPH) method. Comparisons are performed to address algorithmic differences between these methods using a series of verification test cases, prior to its application to more complex systems. The present study describes a comprehensive verification for the fluid-particle simulations with -two different test cases: single particle sedimentation and sedimentation of a constant porosity block. In each case the simulation results are compared with the corresponding analytical solutions showing a good agreement in each case.
|Title of host publication||PARTICLE-BASED METHODS III: FUNDAMENTALS AND APPLICATIONS|
|Editors||M Bischoff, E Ramm, E Onate, R Owen, P Wriggers|
|Place of Publication||08034 BARCELONA|
|Publisher||INT CENTER NUMERICAL METHODS ENGINEERING|
|Number of pages||13|
|Publication status||Published - 2013|
|Event||3rd International Conference on Particle-based Methods - Stuttgart, Germany|
Duration: 18 Sep 2013 → 20 Sep 2013
|Conference||3rd International Conference on Particle-based Methods|
|Period||18/09/13 → 20/09/13|
- Multiphase flow
- particle sedimentation
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