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This paper describes an experimental investigation on the flow characteristics within a rotating cylinder containing a rolling bed of sand. The axis of the cylinder was horizontal and there was no axial bulk flow of particles. The velocity field of the gas flowing through the cylinder was measured by hot-wire anemometry. The measurements indicate that the velocity field is asymmetric with respect...
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...
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