Multi-fluid Eulerian simulation of fluidization characteristics of mildly-cohesive particles: Cohesive parameter determination and granular flow kinetic model evaluation

摘要: Abstract The typical granular kinetic model, the cohesive model based on contact bonding energy (Kim-Arastoopour-Huilin model) and excess compressibility (Ye et al.'s were comprehensively compared in terms of parameters, bed expansion, bubble behavior. calculation methods loss presented, inter-relationship between two parameters was revealed. three models predict consistent dilute gas-solid flow region, while Ye always predicts a lower value when solid fraction is above 0.15. Kim-Arastoopour-Huilin opposite variations pressure with increasing cohesion. Increasing cohesion interaction reduces shear viscosity bulk viscosity. outperform diameter rising velocity.