A note on a boundary condition for spouted beds

作者：Epstein Norman^*

来源：Particuology, 2010, 8(6): 536-538.

DOI：10.1016/j.partic.2010.08.002

• Spouted beds
• Annulus flow
• Boundary condition
• Particle-fluid hydrodynamics

The boundary condition, zero solids pressure at the top of a particle bed of maximum spoutable height, H(m), is shown to eliminate any resort to empiricism in the derivation of the fluid velocity in the annulus of a spouted bed for which both viscous and inertial effects are taken into account. The same boundary condition fails when applied to a spouted bed for which the bed height H < H(m), especially when H < 0.8H(m).

• 出版日期2010-12