円形沈降槽内の流れ場に関する研究 : 吹込みの流れ場での球形粒子の自由沈降運動

概要

論文の詳細を見る
The laminar flow induced by suction at the center of circular vessel and the trajectory of a spherical particle settling freely in it are studied with a view to developing highly effective circular settling tank. Numerical solutions of vorticity transport equations showed the following results; there was a zone of recirculation along the side wall of the vessel, the flow characteristics rather depended on the depth of influent weir than Reynolds number. The numerical results were in agreement with the measurements obtained with the aid of dye-method. The trajectory of a particle in the vessel is simulated by using of the numerical results. The trajectory of a particle is similar to that of an ideal rectangular settling basin, but an increase in the initial distance between particle and the bottom of influent weir leads to a decrease in settlig time.
社団法人日本機械学会の論文
1984-05-24