Analysis of the load characteristics of a local corner region inside a liquid tank impacting water surface obliquely

IF 5.5 2区工程技术 Q1 ENGINEERING, CIVIL

Ocean Engineering Pub Date : 2025-09-27 DOI:10.1016/j.oceaneng.2025.122953

Chuntong Li , Xiaomeng Luo , Juyan Zheng , Hang Xie , Deyu Wang

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引用次数: 0

Abstract

The impact load on liquid tanks is a current research focus. Unlike previous studies that concentrated on impact loads in flat regions, this paper delves into the load characteristics of triangular region based on the Volume of Fluid (VOF) method. The systematic analysis of flow field and pressure characteristics within an inclination angle range of 0–30° was conducted, revealing the effects of flow separation, air pockets and jet impact on the multi-peak fluctuation characteristics of impact loads. Through the comparison of load characteristics at different impact velocities between 5 and 20 m/s, the study identified patterns of load feature similarity. Furthermore, the research explored the effect of multi-degree-of-freedom motion on load characteristics, showing it can effectively reduce impact force by approximately 20 %. Lastly, the influence of corrugated structures on flow field velocity, pressure distribution, free surface flow, and load history was analyzed. According to the findings, corrugated structures can reduce the impact force by 50 %, effectively prevent excessive concentration in high-pressure regions, and provide new optimization insights for liquid tank design.

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液槽内局部角区斜冲击水面的载荷特性分析

液罐的冲击载荷是当前研究的热点。不同于以往的研究集中在平面区域的冲击载荷，本文基于流体体积（VOF）方法深入研究了三角形区域的载荷特性。系统分析了0 ~ 30°倾角范围内的流场和压力特性，揭示了流动分离、气穴和射流冲击对冲击载荷多峰波动特性的影响。通过对比5 ~ 20 m/s不同冲击速度下的载荷特性，发现了载荷特征相似的规律。此外，研究探索了多自由度运动对负载特性的影响，表明它可以有效地减少约20%的冲击力。最后，分析了波纹结构对流场速度、压力分布、自由表面流动和载荷历史的影响。研究结果表明，波纹结构可降低50%的冲击力，有效防止高压区域浓度过高，为液罐设计提供新的优化思路。

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来源期刊

Ocean Engineering 工程技术-工程：大洋

CiteScore

7.30

自引率

34.00%

发文量

2379

审稿时长

8.1 months

期刊介绍： Ocean Engineering provides a medium for the publication of original research and development work in the field of ocean engineering. Ocean Engineering seeks papers in the following topics.