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Study on the equivalent model test and analysis method of brash ice at KRISO ice tank

Authors
Kim, H.S.Lee, C.-J.Kang, K.-J.Jeong, S.-Y.Yum, J.G.Jeong, U.C.
Issue Date
2015
Publisher
Lulea University of Technology
Citation
Proceedings of the International Conference on Port and Ocean Engineering under Arctic Conditions, POAC, v.2015-January
Journal Title
Proceedings of the International Conference on Port and Ocean Engineering under Arctic Conditions, POAC
Volume
2015-January
URI
https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/8670
ISSN
0376-6756
Abstract
Hull form design to satisfy minimum power requirement for Finnish-Swedish ice class rules is challenging work, it has to consider open water resistance (OW), self-propulsion (SP) performance, propeller open water (POW) performance, engine characteristics and ice performance in brash ice channel. KRISO has facilities of towing tank, cavitation tunnel (CT) and square type ice model basin. They have prepared entire process of verification of ship performance in brash ice. The computer added analysis program was developed to analysis of available net thrust for the designed vessel. Three PSV (Platform Supply Vessel) were designed for this study and carried out entire model test (OW, SP, POW and ice) as well. Information of designed PSV vessel, results of CFD (Compute fluid dynamics) analysis, resistance in open water, self-propulsion performance, results of propeller open water performance and results of brash ice model test will be described in this paper. Brash ice model test scheme in KRISO, calculation method of channel resistance, minimum power requirement calculated by in-house software, results of available net thrust will be show. Entire process to do the brash ice model test and analysis for the designed vessel is summarized and the satisfaction of FMA (Finnish-Swedish Maritime Association) rule can be judged after analysis.
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