基于BM-MPS法的垂直隔板制荡机理研究  

Mechanism of vertical baffles restraining sloshing based on BM-MPS method

作　　者：王丽珠 蒋勤[2] 徐敏 WANG Li-zhu;JIANG Qin;XU Min(College of Marine Science and Engineering,Nanjing Normal University,Nanjing 210046,China;College of Harbor,Coastal and Offshore Engineering,Hohai University,Nanjing 210098,China)

机构地区：[1]南京师范大学海洋科学与工程学院,南京210046 [2]河海大学港口海岸与近海工程学院,南京210098

出　　处：《船舶力学》2023年第3期335-343,共9页Journal of Ship Mechanics

基　　金：江苏省自然科学基金项目(BK20200729);江苏省高等学校自然科学研究项目(20KJB170027);水文水资源与水利工程科学国家重点实验室“一带一路”水与可持续发展科技基金资助项目(2021nkms05)。

摘　　要：液舱晃荡易引发海洋事故,危害海洋生态环境,对人类生命安全构成威胁。隔板可以有效地抑制液体晃荡幅度,其制荡效果与机理一直是液舱晃荡研究中的重要内容。本文基于一种改进的粒子法——BM-MPS法,研究横摇激励作用下二维矩形液舱晃荡运动,并重点讨论不同高度的垂直隔板对晃荡的抑制效果与机理。研究结果表明:BM-MPS法通过对压力梯度模型和泊松方程源项的改进,可以显著提高晃荡过程中压力的计算精度;在不同高度的垂直隔板作用下,隔板制荡的主导机理是不一样的。Liquid sloshing tends to cause marine accidents,harming marine ecological environment and posing a threat to the safety of human beings.Baffles can effectively restrain liquid sloshing amplitude,and therefore the effect and mechanism of vertical baffles restraining sloshing is always an important issue in sloshing research.Based on an improved particle method,the BM-MPS method,the liquid sloshing in a twodimensional rectangular tank was investigated under the action of rolling excitation.The inhibition effect and mechanism of vertical baffles with different heights were discussed in particular.The results indicate that the BM-MPS method can significantly improve the accuracy of pressure calculation in sloshing simulation by modifying the pressure gradient model and the source term of Poisson equation.In addition,the study on the effect of the baffle height on the sloshing reduction proves that the vertical baffle height has a significant influence on the mechanism of vertical baffles restraining sloshing.

关 键 词：粒子法 液舱晃荡 隔板高度 制荡机理 

分 类 号：O353[理学—流体力学] U663.85[理学—力学]