【摘要】 液货船在风浪作用下容易发生液舱晃荡现象，晃荡流产生的冲击会损坏舱室结构，这是诱发安全事故的重要原因之一。因此，理解晃荡现象并提出高效的制荡结构至关重要。本研究提出一种新型浮式复合隔板，与传统固定式隔板相比能在不同液舱填充率下均发挥较好的制荡效果。基于STAR–CCM+进行数值模拟，重点研究了高危载液率下不同尺寸与转角的浮式隔板的制荡效果，通过分析波面位移、隔板速度、波浪剖面和流体流态与速度矢量幅值确定最优隔板构型。研究结果表明，浮式隔板通过耦合多种制荡机理能有效抑制液舱晃荡，其腹板可实时切割自由液面来抑制晃荡幅值，其下翼板末端可产生漩涡来有效耗散流体能量，隔板垂荡运动可改变晃荡波面下流体质点的运动轨迹，减轻其对舱壁的冲击，进一步增强制荡效果。更多还原

【Abstract】 Liquid sloshing is prone to occur in liquid cargo ships under the action of wind and waves, and the impact generated by the sloshing will damage the compartment structure, which is one of the important factors inducing safety accidents. Therefore, it is crucial to understand the sloshing phenomenon and propose an efficient anti-sloshing structure. In this study, a new type of floating baffle is proposed, which can provide a better anti-sloshing effect under different filling rates compared with traditional fixed baffle. Sloshing under high-risk filling rate is investigated by numerical simulation based on STAR-CCM+, focusing on floating baffles with different sizes and angles, and the optimal structure of the baffle is selected by analyzing the wave surface displacement, baffle velocity, wave profile, and fluid flow pattern with velocity vector magnitude. The results show that floating baffle can effectively suppress the sloshing by coupling various sloshing mechanisms, its web can cut the free liquid surface in time to suppress the sloshing, and the end of its bottom flange can generate vortex to effectively dissipate the fluid energy, and the heave motion of the baffle can change the trajectory of the fluid mass point under the free surface to reduce the impact on the compartment wall, which further enhances the anti-sloshing effect.更多还原