EULERIAN SIMULATION OF BUBBLE FORMATION ATA JET IN A 2-DIMENSIONAL FLUIDIZED-BED

A promising method to describe the fluid dynamics of highly loaded par ticle flows is the Eulerian representation. In this approach, the soli d phase is treated as a continuum, although physically it consists of individual particles. This is possible by using physical models derive d from the kinetic theory of granular flow. Central to these models is the so-called granular temperature, representing the specific fluctua ting kinetic energy of the particles. In this paper, several forms pro posed for these models are summarized and different descriptions of gr anular temperature are investigated. Furthermore, an alternative appro ach derived from soil mechanics is tested. Measurements of a two-dimen sional bubbling bed found in literature are finally used to verify the results. (C) 1997 Elsevier Science Ltd.