ABSTRACT

A numerical analysis and experimental validation of sloshing phenomenon in three-dimensional square tank with varying resonant frequency and amplitude of excitation is carried out in this study. Numerical simulations using fluid-structure interaction (FSI) was carried out and validated with experimental result. Square tank is numerically simulated with 50, 100 and 200 mm of water height excited at its 25%, 50%, 75% and 100% of resonance frequencies. Numerical study has been extended to study sloshing phenomenon at different ratio of resonance frequencies to that of varying amplitudes 30, 40 and 60 mm. Pressure of liquid in container during excitation were recorded at specific intervals of time and analysed. Increase in amplitude and frequency of excitation is directly proportional to pressure of liquid in tank. Sudden impulse of velocity of tank has an impact over the pressure built inside tank. The sloshing phenomenon in vertical and horizontal baffle configuration is also examined.

摘要

本研究对具有不同谐振频率和激励幅度的三维方形水箱中的晃动现象进行了数值分析和实验验证。使用流固耦合 (FSI) 进行数值模拟，并用实验结果进行验证。方形水箱在 25%、50%、75% 和 100% 的共振频率下以 50、100 和 200 mm 的水高进行数值模拟。数值研究已扩展到研究不同共振频率比率与不同幅度 30、40 和 60 毫米的晃动现象。以特定的时间间隔记录并分析激发期间容器中液体的压力。激励幅度和频率的增加与罐中液体的压力成正比。储罐速度的突然脉冲会对储罐内部的压力产生影响。还检查了垂直和水平挡板配置中的晃动现象。