水平放置圆柱体内液体二维晃动特性分析

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Analysis of Liquid Sloshing Characteristics in Two-Dimensional Horizontal Cylindrical Tank

1. Nuclear Power Institute of China, Chengdu, 610041, China;
2. School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu, 610031, China

摘要: 基于势流理论研究了水平放置圆柱形贮箱内任意充液比液体晃动问题。针对液体自由晃动问题,计算不同充液比下液体的晃动频率,分析液体晃动频率与充液比和腔体半径的变化关系,最后运用Galekin方法求解该边值问题。研究表明,液体晃动第1阶频率随充液比增大而增大,第2、3阶频率则随充液比增加而先减小再增大,并在半充液比附近最小;当填充比很大时,各阶晃动频率都很快增大。与实验数据的对比表明,计算得到的液体晃动频率与实验值符合良好,分析结果可信。
- 圆柱体 /
- 充液比 /
- 液体晃动 /
- 晃动频率
Abstract: Liquid sloshing of different proportional liquid-filled cylindrical tanks is investigated in this paper based on the Potential Flow Theory.The boundary value problem is solved by the Galekin method.Sloshing frequencies changed along with the liquid-filled proportions and radiuses are discussed in the free vibration,and the calculation results are compared with the experimental data,which have a good agreement.The result demonstrates that the method in this paper is right and effective.
- Cylinder /
- Liquid-filled proportion /
- Liquid sloshing /
- Sloshing frequencies