Journal
OCEAN ENGINEERING
Volume 229, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.oceaneng.2021.108621
Keywords
CFD; Inland vessel; Restricted waters; Static drift; Scale effect; Power prediction; OpenFOAM
Funding
- project RESET (REliability and Safety Engineering and Technology for large maritime engineering systems) - European Union Horizon 2020 research and innovation program, under the Marie Skodowska-Curie grant [73088 RESET]
- Portuguese Foundation for Science and Technology (Fundacao para a Ciencia e Tecnologia FCT) [UIDB/UIDP/00134/2020]
- National Key R&D Program of China [2018YFB1601503, 2018YFB1601505]
- National Natural Science Foundation of China [51709217]
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This study presents simulation results of an inland container vessel designed for operation in the inland waters of China. The analysis focuses on the vessel's propulsion power requirements and resistance variations under different operating conditions, highlighting significant increase in resistance when navigating shallow and narrow channels. The study concludes that model-scale simulations are efficient for preliminary studies, but full-scale simulations should be considered for accurate power prediction.
The paper presents simulation results of an inland container vessel designed to be operated in the inland waters of China. Initially, calm water simulations are performed in open water with varying draft and speed to determine the possible propulsion power required by the vessel for regular operations. Next, static drift simulations are performed with a heave and pitch-free motion at varying drift angles and drafts. Encountered hull resistance and linear derivatives are determined from the drift results to assess the vessel's maneuvering capabilities. Finally, simulations are performed in restricted water following possible operating channel geometry to assess the vessel's performance in restricted operating conditions. The required propulsion power of the vessel has been calculated for each case and compared. Cases that showed maximum resistance was re-stimulated in full scale to discard the scaling effect from predictions. The results show that a significant increase in resistance is observed when the vessel operates in shallow and narrow channels, which limits its possible operating speed. The study concludes that model-scale simulations are efficient for preliminary studies. However, for the required power prediction, full-scale simulations should be considered.
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