複数枚の隔壁挿入による容器内液面スロッシングの制振と内部流動によるエネルギ散逸機構

抄録

This paper deals with sloshing suppression and energy dissipation due to internal flow in a rectangular vessel with multiple bulkheads. In this study, first, the effect of double bulkheads spacing on the sloshing suppression characteristics is clarified experimentally. Next, the effects of bulkheads aperture height on the sloshing suppression characteristics are clarified for double and triple bulkheads. The relationship between internal flow in the vessel and suppression characteristics is also investigated by experiment and PIV. As a result, the more the two bulkheads are inserted equally spaced in the vessel, the more effective they are in the suppression of the sloshing. In addition, the deeper the bulkheads are inserted, the more effective they are. Furthermore, it is found that the sloshing energy is dissipated by the vortex and swirling flow generated in the vessel, creating a sloshing suppression effect. Finally, the fluid forces acting on the bulkheads are clarified by numerical analysis, and the characteristics of multiple bulkheads are discussed.