Use of the composite energy density for analysis of the stability of the composite phase in magnetized fluidized beds

Abstract

The stability of a magnetized fluidized bed is considered in the context of multiphase composite systems. The structural transition of the composite phase is shown to depend on the composite energy density per unit mass of bed. A criterion of composite phase transition is established using the principle that along the transition line from one structure of the composite phase to another, the change in the composite energy density vanishes.

The criterion is also formulated for the general case of composite systems consisting of statistically dependent phases. Finally, data of transition velocity vs. field intensity are analysed showing that theory and experiment are in good agreement.