Experimental and Numerical Studies of Fine Quartz Single-Particle Sedimentation Based on Particle Morphology

The sedimentation characteristics of quartz particles affect their separation and settling dehydration processes. Particle morphology determines the equilibrium velocity. In this paper, a single particle is characterized by employing experimental CFD-DEM approaches. SEM served to examine measuring 30–500 μm, they exhibited flaky–blocky morphologies with an average long–middle axis ratio 1.6. Consistent SEM-detected morphological features particles, suggested here simpler drag coefficient model, followed verification model data. results show that velocity in non-settling direction had fluctuation ±0.2 mm/s. reached 0.4 mm/s at varying settlement release angles. order which during process was double-cone, single-cone, square when initial greater than Furthermore, diminished as velocities rose. Given ranged from 30 50 μm size, wielded no discernible effect on