1534 一定量の粉体群が鉛直管内を自由落下する場合の流動特性 : 粉体包装機械設計スキームの合理化(G05-3 複雑流体,G05 流体工学)

概要

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We present the findings of an unsteady flow characteristics of a certain quantity powder falling in the vertical pipe by the experimental investigation. This report is fundamental research for rationalization of design scheme on powder packing machine. When a certain quantity powder falls in the vertical pipe from the status of natural filling up, the distribution length of the powder expands as it falls. The powder falling velocity of the front end and the rear end are measured by the laser sensor. It understood that the front end powder velocity becomes same to the theoretical dropping velocity of the 0.5mm diameter single particle. The rear end powder velocity became same to the theoretical dropping velocity of the single particle of each particle diameter. And the scattering velocity which is calculated in difference of the front end velocity and the rear end correlated to Reynolds number based on the particle.
社団法人日本機械学会の論文
2007-09-07