Full-scale measurements to assess squat and vertical motions in exposed shallow water
Verwilligen, J.; Mansuy, M.; Vantorre, M.; Eloot, K. (2018). Full-scale measurements to assess squat and vertical motions in exposed shallow water, in: Proceedings of the 34th PIANC World Congress 2018 in Panama City, Panama. pp. [1-20]
The paper presents the results of full scale measurements performed on seven cape-size bulk carriers sailing inbound to the port of Flushing/Vlissingen (the Netherlands). The voyages of this type of vessels correspond to small under keel clearances (to a minimal value of 16%) and exposed wave conditions (with a wave height up to 2.6 m). The main interest in this paper concerns the vertical motions experienced by the vessels and the identification and assessment of the major factors influencing these motions. As the vertical ship motions for bulk carriers operating in coastal waters are mainly related to seakeeping and squat, the unsteady and steady ship motions were analysed separately.
The observations will be applied to validate a prediction tool for vertical ship motions, which is implemented by the Common Nautical Authority (Flanders / the Netherlands) to assess probabilistically the accessibility of deep-drafted vessels to the harbours along the river Scheldt.
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