Liquefaction of granular bulk cargo could result in cargo movement and loss of stability of ships, causing the loss of many lives in marine casualties in recent years. To ensure shipping safety, experimental tests and numerical methods have been adopted to reveal the coupled mechanism between liquefied cargo movement and ship motions. In the present study, a numerical model based on a CFD solver and non-Newtonian constitutive equations was established to solve the sloshing of liquefied nickel ore. Validations were carried out by comparing with available experimental data. A nonlinear simplified body surface method is proposed for the external ship response. The two problems are coupled through a coupling strategy. Different wave frequencies and amplitudes were considered and analyzed. Finally, the main reasons for the ship capsizing were deduced and concluded.

中文翻译：

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液化镍矿船耦合效应数值研究

颗粒状散货液化会导致货物移动和船舶失稳，近年来造成许多海难人员丧生。为确保航运安全，通过实验测试和数值方法揭示了液化货物运动与船舶运动之间的耦合机制。在本研究中，建立了基于 CFD 求解器和非牛顿本构方程的数值模型来解决液化镍矿的晃动问题。通过与可用的实验数据进行比较来进行验证。针对船舶外部响应，提出了一种非线性简化体表面法。这两个问题通过耦合策略耦合。考虑和分析了不同的波频率和振幅。最后，