水中で正弦的に振動する円柱の流体反力に対する端板の大きさの影響

概要

論文の詳細を見る
The hydrodynamic forces generated by water-circular cylinder interaction have been investigated experimentally. Two kinds of circular cylinder models of 50 and 75 mm diameter and 200 mm span length, and six kinds of end-plates of 68, 100, 150, 200, 300 and 400 mm width were used. The cylinder supported by two end-plates was oscillated horizontally in standing water by mechanical oscillation machinery. Period parameters ranging from 0.2 to 2.6 and Reynolds numbers from 5 000 to 40 000 were covered in the investigation. The results have shown that the force amplitude coefficients based on the acceleration have a constant value of 1.0 at the end-plate dimensions of greater than four times the cylinder diameter, and the effects of end-plate dimensions on the force amplitude coefficient are not influenced by Reynolds number and Period parameter.
一般社団法人日本機械学会の論文
1989-05-25