水中で正弦的に振動する正四角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-square cylinder interaction have been investigated experimentally. A square cylinder model of 50mm side length and 200mm span length, and five kinds of end-plates of 100, 200, 300, 400, 500mm width were used. The cylinder supported by two end-plates was oscillated horizontally in standing water by mechanical oscillation machinery. The force was measured by means of a quartz force transducer. Period parameters ranging from 0.2 to 3.0 and Reynolds numbers from 5000 to 40000 were covered in the investigation. The results have shown that the force amplitude coefficients based on the acceleration of two-dimensional square cylinder are obtained at end-plate dimensions of greater than 10 times the square cylinder side length, and the force amplitude coefficients and the force wave forms depend on the period parameter but not on the Reynolds number.
一般社団法人日本機械学会の論文
1991-01-25