Some aspects of the one-dimensional fluidized flow of divided solids

Summary

The attractive thermodynamic properties and the non-classical fluid mechanics of fluidized, dry, divided solids are reviewed briefly. Thereafter, the presentation is restricted to: Steady, One-Dimensional, “Frictionless”, Constant Area, Vertical Down-Flow of Fluidized, Dry, Divided Solids.

In the classical manner, equations which describe continuity of gas and solids flow, dynamic equilibrium, and energy balance are written. Gas-over-solids drag equations are discussed and two examples are chosen. For each example, these five equations are combined to give a single, first order, ordinary, non-linear differential process equation which relates the flow process properties, avoids and gas pressure.Kojabashian's approximate solution which neglects inertia forces and reduces to an algebraic process equation is reviewed. Some solutions to the differential process equation are obtained by the method of isoclines. These are compared withKojabashian's approximate solution.