Estimation of the Fluidization Behavior of Nonspherical Wet Particles with Liquid Transfer
Shuai Wang, Qiang Wu, Yurong He
Abstract
Many industrial processes involve wet-particle systems. Particle shape influences the liquid transfer and interaction between particles in wet-particle systems. In this work, a spouted fluidized-bed system with nonspherical wet particles is investigated, where the liquid transfer model is implemented in the CFD-DEM framework to consider the redistribution of liquid content after the collision of nonspherical wet particles. The behaviors of spherical and nonspherical wet particles in a spouted fluidized bed are compared. The results demonstrate that nonspherical wet particles can strengthen the liquid bridge force and particle agglomeration in contrast to spherical wet particles. The liquid transfer results in a clear discrepancy of liquid content on the particle surface. The multiple contacts with neighboring particles inside the agglomeration reduce the liquid content on the particle surface, which is enhanced under a higher aspect ratio.