K-1418 Particle Behaviors in a Two-Dimensional Bubbling Fluidized Bed Obtained by PIV Observations

Abstract

In fluidized-beds in-bed bodies tend to be subjected to violent particle forces, which tend heavily excite them and, in some situations, erode them. It is important to know about the particle forces. In some applications the motion of large bodies mixed into the particles should be controlled and guided intentionally for some control purposes. From the aspect, in order to obtain information on the particle motions at impacts on an in-bed circular cylinder, PIV analyses of high-speed video-images of bubbling behaviors in a two-dimensional fluidized-bed were conducted. Obtained data on the particle speeds could be used to estimate the particle forces.