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Key features in the fully-coupled resolved CFD-DEM model to analyse detailed fluid flow around particles, particularly in understanding microscopic interactions
Coupling with different shape particles
Coupling with different shape particles
Shape models:
Superquadric particles
[Video] Bubbling in liquid with spherical and non-spherical particles
Hydrodynamic interactions
Hydrodynamic interactions
Particle-fluid interaction models:
VP (Volume Penalisation) method with controllable solid/particle interface thickness
Optimal permeability of particle interface evaluated for accurate momentum exchange between particle and fluid
[Video] Density segregation of particles due to fluidisation
Interfacial interactions
Interfacial interactions
Fluid-fluid interface capturing:
Controllable interface capturing with combined interface compression and diffuse interface techniques
Particle wetting and capillary force:
Particle wetting expressed by the IFS (Immersed Free Surface) method, by extending the fluid-fluid interface into the solid/particle region - example of immersed free surface shown in the static liquid bridge case below
Capillary force acting on particles calculated by the CCF (Continuum Capillary Force) model
[Video] Liquid bridge between two non-spherical (superquadric) particles
Single particle entry into water (left half: experiment by Liu & Ding, 2015)
Static liquid bridge between spherical particles with different contact angles, and comparison of the liquid bridge force with theory (Surface Evolver solver)
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