Abstract
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.
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