噴流による矩形容器内自励スロッシングの発生機構 : 第1報, 垂直平面噴流による自励スロッシング

概要

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A sloshing can be induced by a jet without any external oscillatory force. In a rectangular tank having a vertical plane jet, the first-mode sloshing was observed under a certain condition of the inlet jet velocity and the water depth, i. e., a sloshing condition. In this study, a growth mechanism of the self-induced sloshing caused by the vertical plane jet was theoretically evaluated. A new growth model was proposed, which was based on a feedback loop between the sloshing and the jet. When an oscillation energy supplied for the sloshing was positive, the sloshing was able to grow. The calculated sloshing condition agreed qualitatively with the experimental sloshing condition for different tank geometries. Therefore, the validity of the sloshing growth model was confirmed. The sloshing was found to be caused by the feedback loop constituted by the jet and the free surface.
一般社団法人日本機械学会の論文
1996-02-25