国家自然科学基金资助项目 (No . 5 0 3 0 60 12 );国家重点基础研究发展规划项目 (No . 2 0 0 2CB2 1160 0 )~~
Solids motion in the annulus of a spouted bed can be considered as a quasi-static deforming flow similar to that in a silo. Several simplified granular-flow models by Sullivan et al. including kinematic, potential and...