양광관 내부 슬러리 유동의 입자 유동 상호작용 CAE 해석법 개발

Abstract

We developed a two-way coupling model using a discrete element method (DEM) and a lattice Boltzmann method (LBM) to investigate the dynamic characteristics of slurry flow in lifting pipe. An analytical model of the creeping flow of chain particle’s drag force in a uniform flow is derived and validate with a simulation. In order to compare and analyze the characteristics of the fully coupled slurry flow, particle sedimentation system is modeled using the commercial software SAMADII/DEM and SAMADII/LBM. Back flow induced by sediment particles is affect particle distribution along the sediment direction.rticle’s drag force in a uniform flow is derived and validate with a simulation. In order to compare and analyze the characteristics of the fully coupled slurry flow, particle sedimentation system is modeled using the commercial software SAMADII/DEM and SAMADII/LBM. Back flow induced by sediment particles is affect particle distribution along the sediment direction.