双浮式挡板下液舱内液体晃荡数值分析  

Numerical Analysis of Liquid Sloshing in Tank under Double Floating Baffle

作　　者：洪昭春 石玉云 李志富 HONG Zhaochun;SHI Yuyun;LI Zhifu(School of Naval Architecture and Ocean Engineering,Jiangsu University of Science and Technology,Zhenjiang 212100,Jiangsu,China)

机构地区：[1]江苏科技大学船舶与海洋工程学院,江苏镇江212100

出　　处：《船舶工程》2024年第11期31-38,共8页Ship Engineering

基　　金：国家自然科学基金(52071162,12372242,52101315)。

摘　　要：为有效抑制液舱内液体的晃荡,基于STAR-CCM+软件提出一种双浮式挡板结构,重点考虑在共振条件下不同淹没率、间距和高度的双浮式挡板的制荡效果。通过对比波幅、动压强极值、舱壁动压强曲线和速度矢量幅值的大小,甄选出最优的挡板结构形式。结果表明,淹没率为50%、间距D=0.32L(L为液舱的长度)、高度B_(H)=0.10 m(液舱高度H的33%)的双浮式挡板的制荡效果最好。研究结果可供后续液舱制荡设计参考。In order to effectively suppress the sloshing of liquid in the tank,a double floating baffle structure is proposed based on STAR-CCM+software,focusing on the sloshing control effect of double floating baffles with different submergence rates,spacing,and heights under resonance conditions.By comparing the amplitude of the waves and the extreme values of the dynamic pressure,the dynamic pressure curve of the tank wall,and the magnitude of the velocity vector,the optimal structural shape of the baffle is selected.The results show that the double floating baffle with a submergence rate of 50%,a spacing of D=0.32L(L is the length of the tank)and a height of B_(H)=0.10 m(0.33H)has the best damping effect.The research results can provide some reference for the subsequent design of liquid tank sloshing.

关 键 词：双浮式挡板 液舱晃荡 挡板间距 数值模拟 舱壁动压强 波幅极值 

分 类 号：U661.1[交通运输工程—船舶及航道工程]