标题： 一种用于系泊浮体动力学的有限体积Simo-Reissner梁方法 显示英文标题

标题： A finite volume Simo-Reissner beam method for moored floating body dynamics

摘要： 本文提出了一种基于几何精确Simo-Reissner梁模型的新颖有限体积系泊线模型，用于分析漂浮刚体与其系泊缆索之间的相互作用。 耦合数值模型完全基于有限体积离散化框架实现，并使用流行的计算流体力学C++工具箱OpenFOAM开发。 与现有的依赖集中质量模型或基于有限元方法的系泊缆索建模方法不同，本研究通过在有限体积框架中实现非线性梁模型来模拟系泊缆索，以考虑弯曲、拉伸和扭转载荷。 这一进步使当前工作在模拟极端海况方面尤为重要。 本研究开发的耦合模型已通过实验数据和数值数据进行了验证，用于模拟四根悬链系泊缆索系泊的漂浮箱在具有不同波高和周期的规则波条件下的运动。 结果表明，该模型在捕捉系泊动力学和漂浮体运动方面表现出色，与实验数据和数值数据高度一致。 显示英文摘要

摘要： This paper presents a novel finite volume mooring line model based on the geometrically exact Simo-Reissner beam model for analysing the interaction between a floating rigid body and its mooring lines. The coupled numerical model is implemented entirely within a finite volume-based discretisation framework using a popular computational fluid dynamics C++ toolbox, OpenFOAM. Unlike existing methods for modelling mooring lines, which rely on lumped mass models or finite element-based approaches, this work simulates the mooring cables using non-linear beam models implemented in a finite volume framework to account for bending, tensile, and torsional loading. This advancement makes the current work particularly valuable for simulating extreme sea conditions. The coupled model developed in this study has been validated and verified using experimental and numerical data for a floating box moored with four catenary mooring lines under regular wave conditions featuring different wave heights and periods. The results demonstrate strong agreement with both experimental and numerical data, highlighting the model's accuracy in capturing mooring dynamics and floating body motion.