Drag Coefficient and Terminal Velocity of Spherical and Nonspherical Particles
Explicit equations are developed for the drag coefficient and for the terminal velocity of falling spherical and non-spherical particles.
Explicit equations are developed for the drag coefficient and for the terminal velocity of falling spherical and non-spherical particles.
Inclined, intermittent jets can be used to feed solids into fluidized beds. In this report the injection system was successfully modeled.
Non-mechanical valves, especially the L-valves, have been used extensively in fluidized beds and circulating fluidized beds for solids recycling or to serve as a pressure seal. This paper presents a set of L-valve equations which relate the solids flow rate to the L-valve design, aeration rate, and pressure drop across the L-valve.
Accurate predictions of both the flux and size distribution of the solids entrained above the transport disengaging height of a fluidized bed are necessary. A new correlation was developed to calculate size distribution and flux of entrained particles.
In this paper, to investigate the effects of particle properties on these meso-scale structures, for all particle types, two-fluid modeling with and without consideration of meso-scale structures were performed and compared.