Akademik Veri Yönetim Sistemi
POLISH MARITIME RESEARCH, cilt.33, sa.2, ss.18-27, 2026 (SCI-Expanded, Scopus)
The global economy is significantly dependent on the maritime industry, which includes activities such as cargo shipping, passenger ferries, commercial fishing, and naval operations. The success of this industry relies on the safe and efficient management of marine vessel operations: damage to a ship can breach its watertight integrity, leading to flooding that destabilises the vessel and poses severe risks to both the ship and its crew. This study investigates the behaviour of intact and flooded ships under regular wave conditions through model testing. A model ship at a scale of 1:112 with an overall length of 1.435 m was tested in both damaged and intact states within a 20 × 14 × 1.8 m wave basin. The experiments included 12 different regular waveforms, characterised by three wave steepness levels and four wavelengths. The effects on the model of wave encounter angles of 90°, 180°, and 270° were analysed, along with two different initial stability conditions. Motion in six degrees of freedom was measured to determine the corresponding response amplitude operators, and it was found that multi-compartment flooding altered the motion responses of the vessel. Free-decay tests showed that floodwater increased the natural roll period by 57% with the first initial stability condition and by 97% with the second. Increased damping was observed under both stability conditions, and the roll response decreased most markedly at encounter angles of 90° and 270°. The results of this study contribute to the current understanding of ship stability under flooded conditions and provide valuable data for validating numerical models.