Magnetic resonance studies of a gas-solids fluidised bed: Jet-jet and jet-wall interactions

Magnetic resonance imaging (MRI) gave images of air jets from orifices in the distributor plate of a bed of poppy seeds. Attention focused on two features:(1) The interaction between nearby vertical jets from two. three or four orifices:(2) Wall effects, where one or more orifices created vertical jets near the vertical wall of the cylinder containing the particle bed.The results show that nearby jets are mutually attracted. Likewise a jet near a wall bends out of the vertical, towards the wall. For multiple adjacent jets, the jet lengths show dependence on orifice layout:the lengths are in reasonable agreement with published measurements, by other methods, for single jets. The MRI gives three-dimensional images of the single jets and of multiple jets. separate or merging.