Numerical Study on the Motion and Added Resistance of a Trimaran in Stern Waves Using a Hybrid Method

IF 0.9 4区工程技术 Q4 ENGINEERING, CIVIL

International Journal of Offshore and Polar Engineering Pub Date : 2022-03-01 DOI:10.17736/ijope.2022.jc840

Jiaye Gong, Yunbo Li, S. Yan, Q. Ma, Z. Hong

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引用次数: 0

Abstract

This paper presents a one-way coupling method based on the open-source computational ﬂuid dynamics tool OpenFOAM. This hybrid method that couples the fully nonlinear potential theory (FNPT)-based quasi-arbitrary Lagrangian–Eulerian ﬁnite element method (QALE-FEM) with the viscous ﬂow method is applied to simulate the forward movement and motion of a trimaran in stern waves. With this hybrid method and the corresponding solver qaleFOAM, the linear and nonlinear incident waves are generated by the external domain of FNPT-based QALE-FEM. The waves propagate to the internal domain by a transition zone. The interaction between the wave and trimaran model in the internal domain is simulated by the viscous ﬂow method. The validation of the wave generation is carried out ﬁrst. Then, the motion of the trimaran model in stern waves is simulated. Finally, by changing the forward speed and the wave parameters, the amplitude and time history are obtained to analyze the trimaran’s motion characteristics in stern waves.

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三体船在尾波中运动和附加阻力的混合方法数值研究

本文提出了一种基于开源计算流体力学工具OpenFOAM的单向耦合方法。将基于全非线性势理论(FNPT)的准任意拉格朗日-欧拉有限元法(QALE-FEM)与粘性流动法相结合，对三体船在尾波中的正向运动和运动进行了数值模拟。利用这种混合方法和相应的求解器qaleFOAM，利用基于fnpt的QALE-FEM的外域产生线性和非线性入射波。波通过一个过渡区传播到内部域。用粘性流动法模拟了波浪与三体船模型在内域中的相互作用。首先进行了波形生成的验证。然后，对三体船模型在尾波中的运动进行了仿真。最后，通过改变前进速度和波浪参数，得到振幅和时程，分析三体船在尾波中的运动特性。

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

International Journal of Offshore and Polar Engineering ENGINEERING, CIVIL-ENGINEERING, OCEAN

CiteScore

2.00

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The primary aim of the IJOPE is to serve engineers and researchers worldwide by disseminating technical information of permanent interest in the fields of offshore, ocean, polar energy/resources and materials engineering. The IJOPE is the principal periodical of The International Society of Offshore and Polar Engineers (ISOPE), which is very active in the dissemination of technical information and organization of symposia and conferences in these fields throughout the world. Theoretical, experimental and engineering research papers are welcome. Brief reports of research results or outstanding engineering achievements of likely interest to readers will be published in the Technical Notes format.