同一鉛直面に等間隔で配置させた等しい球群の低Re数での自由落下分散運動

概要

論文の詳細を見る
Experiments for a cluster of equally sized spheres falling freely in quiescent glycerol at low Reynolds numbers are carried out using a large test tank. The numbers of equally sized spheres are 3〜12 on a horizontal line and 4×4〜10×10 on a vertical plane. Each spacing between two neighbouring spheres is equal to the sphere diameter. The numerical results obtained using the superposition method of Oseen's flow field produced by the translation of each sphere during free-fall motion of the cluster of spheres agree well with the experimental results. It is concluded that the dispersive motions of equally sized spheres on a horizontal line or on a vertical plane are classified into "V type" or "W type" depending on whether the number of spheres is odd or even, respectively.
社団法人日本機械学会の論文
1996-12-25