采用基于VOF法的多相流模型研究横摇与垂荡复合激励下二维矩形液舱的两自由度晃荡问题。对比分析单独横摇激励与横摇-垂荡复合激励下晃荡压力的变化特点。结果表明，复合激励下的晃荡压力曲线呈多种周期形式，垂荡激励的加入对晃荡压力有放大效应，但此效应在2个激励频率相近时表现不明显。对复合激励的压力时程曲线进行傅里叶分析，统计两者及两者之和、之差共4种主要频率对应的压力的幅值变化，发现随着垂荡频率的增大，横摇频率对晃荡压力的影响逐渐降低，同时其余3种频率对晃荡压力的影响逐渐增大。
The multiphase flow model based on VOF method is used to study the two degree of freedom sloshing of two-dimensional rectangular tank under the compound excitation of roll and heave. Contrasting analysis of the sloshing pressure characteristics under roll excitation alone and roll-heave compound excitation. The results show that the sloshing pressure curve under compound excitation has multiple periodic forms, and the addition of heave excitation has an amplifying effect on the sloshing pressure, but this effect is not obvious when the two excitation frequencies are similar. Fourier analysis is made on the pressure curve of compound excitation, count the amplitude changes of four main frequencies: roll frequency, heave frequency and their sum and difference. It is found that with the increase of heave frequency, the influence of roll frequency on sloshing pressure gradually decreases, while the other three frequencies become more influential to the pressure.
2022,44(19): 22-27 收稿日期：2022-03-16
DOI：10.3404/j.issn.1672-7649.2022.19.005
分类号：TH137
基金项目：江苏省海洋资源开发研究院开放课题项目（JSIMR202007, JSIMR202009）
作者简介：张会霞(1976-)，女，博士，研究方向为船舶与海洋工程，摩擦学
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