上壁のある円形衝突噴流により浮上する円盤に働く揚力 : 第3報、小円盤の場合 : 流体工学,流体機械

概要

論文の詳細を見る
Experimental studies on the lift act on a small disk levitated by a circular impinging jet with confining wall were carried out. The diameters of upper and lower disks were 100 mm and 20〜30 mm, respectively. The mass of the lower disks ranged 1.5〜52 g. The behavior of levitation of the disk and the pressure distributions on the disk were measured in the range of the space between the two disks from 0.5 to 6 mm in the range of the flow rate 10〜50 l/min, and the surface oil-flow patterns on the both disks were visualized. The levitating and falling critical flow rate were obtained by the dimensionless quantities. And the dimensionless lift act on the small disk was also obtained. The lift is almost equal to the weight of the disk. The levitation of the disk depends on a large pressure drop which caused by the vena contracta due to the separation bubble attached on the upper disk.
一般社団法人日本機械学会の論文
2001-05-25