Experimental observation on violent sloshing flows inside rectangular tank with flexible baffles

IF 4.3 2区工程技术 Q1 ENGINEERING, OCEAN

Applied Ocean Research Pub Date : 2024-11-14 DOI:10.1016/j.apor.2024.104307

Taehyun Park , Cheon-Jin Park , Jeoungkyu Lee , Yonghwan Kim

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引用次数: 0

Abstract

In this study, a series of sloshing model tests were conducted to observe the effects of an internal baffle in a rectangular tank and to secure basic data for future numerical calculations or applications to similar phenomena.

The sloshing flows and flexible motions of two different baffles with hyper-elastic properties were observed and the results were compared with those of a non-flexible baffle. Experiments were conducted for different filling conditions, motion amplitudes, and excitation frequencies, with a particular focus on violent flow cases. The local flows around the baffles were captured using a high-speed camera, and the sloshing-induced impact pressures on the tank walls were measured. The present experiment showed strong interactions between flexible baffle motion and sloshing flows, particularly at motion frequencies higher than the natural sloshing frequency. The physical phenomena became more complicated when the free surface was closer to the baffle height. The data obtained in this study can be used as benchmark tests for numerical computation of strong-fluid interactions.

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带柔性挡板的矩形水槽内剧烈荡流的实验观测

在本研究中，进行了一系列荡流模型试验，以观察矩形水箱中内部挡板的影响，并为将来的数值计算或类似现象的应用获取基础数据。实验针对不同的填充条件、运动幅度和激振频率进行，尤其侧重于剧烈流动的情况。使用高速摄像机捕捉了挡板周围的局部流动，并测量了湍流对罐壁造成的冲击压力。本实验表明，柔性挡板运动与荡流间存在强烈的相互作用，尤其是在运动频率高于自然荡流频率时。当自由表面更接近障板高度时，物理现象变得更加复杂。本研究获得的数据可作为强流体相互作用数值计算的基准测试。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Ocean Research 地学-工程：大洋

CiteScore

8.70

自引率

7.00%

发文量

316

审稿时长

59 days

期刊介绍： The aim of Applied Ocean Research is to encourage the submission of papers that advance the state of knowledge in a range of topics relevant to ocean engineering.