Time-domain simulation study of damaged ship compartments flooding based on CFD

In the course of ship navigation, sudden events such as collisions and grounding may occur, leading to damage and flooding of ship compartments, impacting the safe navigation of the vessel. Different states of compartment flooding have varying effects on the vessel's motion and resistance, consequently influencing the remaining navigational performance of the ship. Utilizing Computational Fluid Dynamics (CFD) methodology, this study conducts dynamic analysis of compartment flooding in different water conditions for a container ship. The research investigates the hydrodynamics of the vessel during compartment flooding, revealing the process and three degrees of freedom motion states. Simulation results indicate that the motion generated by compartment flooding under first-order waves is more intense compared to instantaneous motion under calm water conditions, although the overall motion trends are similar once stability is achieved. Different volumes of compartment flooding exhibit varying effects on vessel motion. The findings of this study provide valuable insights for estimating the remaining navigational performance of ships under compartment flooding conditions during actual voyages.