Study of wall boundary condition in numerical simulations of bubbling fluidized beds

摘要: Abstract The influence of the solid-phase wall boundary condition was investigated in Eulerian–Eulerian numerical simulations a bubbling fluidized bed. Parametric studies particle–wall restitution coefficient and specularity were performed to evaluate their impact on predicted flow hydrodynamics terms bed expansion, local voidage, solid velocity. Both two- three-dimensional conducted compared with available experimental data velocity bubble properties. It is found that effect plays an important role CFD models. Such factors as voidage at boundary, averaging method, minimum size also mean diameter.