A note on a boundary condition for spouted beds |
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| Authors: | Norman Epstein |
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| Institution: | a Department of Chemical & Biological Engineering, The University of British Columbia, 2216 Main Mall, Vancouver, B.C., Canada V6T 1Z3 |
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| Abstract: | The boundary condition, zero solids pressure at the top of a particle bed of maximum spoutable height, Hm, 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 < Hm, especially when H < 0.8Hm. |
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| Keywords: | Spouted beds Annulus flow Boundary condition Particle– fluid hydrodynamics |
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