NUMERICAL SIMULATION OF FLOW IN FLUIDIZED BEDS.

The article provides a brief overview of a one-dimensional model of two-phase ow in the geometry of a circulating uidized bed combustor exhibiting vertical variability of cross-section. The model is based on numerical solution of conservation laws for mass, momentum and energy of gas and solid components of the uidized-bed system by means of the finite-volume method in space and of a multistep higher-order solver in time. The presented computational results reproduce characteristic behavior of uidized beds in the given geometry. [ABSTRACT FROM AUTHOR]