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Comparative study on added resistance of a bulk carrier in regular head and oblique waves
Seoul National University, South Korea.
Seoul National University, South Korea.
Seoul National University, South Korea.
Seoul National University, South Korea.
Vise andre og tillknytning
2020 (engelsk)Inngår i: Proceedings of the International Offshore and Polar Engineering Conference, International Society of Offshore and Polar Engineers , 2020, s. 3385-3393Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

In this study, a comparative study on motion response and added resistance of a Supramax bulk carrier (K-Supramax Original) in regular waves was carried out to evaluate the reliabilities and accuracies of experimental and numerical simulation techniques. Two kinds of experiments were performed; one is the towing tank model testing for head wave conditions conducted at Seoul National University, and the other is the free-running model test for head and oblique wave conditions conducted at SSPA Sweden AB. Also, nine numerical computation results submitted by seven institutions were compared with the experimental data. The computation results were obtained by various seakeeping analysis methods such as the 2D strip theory, 3D Rankine panel method, and Computational Fluid Dynamics (CFD) based analysis. Based on the comparison, the characteristics of each numerical technique and resultant accuracies of seakeeping analyses were investigated. It was also confirmed that different results were obtained although the same program was used because of the user dependencies; setting for computation parameters, numerical schemes, and mesh generations, etc. Furthermore, the sensitivities of seakeeping quantities with respect to wave amplitudes were examined by conducting both model tests and nonlinear numerical simulations for different wave slopes. Lastly, the tendencies of ship motion and added resistance depending on the heading angle were identified, and the reliabilities of experiments and numerical computations for oblique waves were discussed.

sted, utgiver, år, opplag, sider
International Society of Offshore and Polar Engineers , 2020. s. 3385-3393
Emneord [en]
Added resistance, Bulk carrier, CFD, Comparative study, Rankine panel method, Strip theory, Computation theory, Computational fluid dynamics, Mesh generation, Numerical models, Seakeeping, Software testing, Added resistances, Comparative studies, Nonlinear numerical simulation, Numerical computations, Numerical scheme, Numerical techniques, Seoul National University, Simulation technique, Arctic engineering
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Identifikatorer
URN: urn:nbn:se:ri:diva-71809Scopus ID: 2-s2.0-85090891157ISBN: 9781880653845 (tryckt)OAI: oai:DiVA.org:ri-71809DiVA, id: diva2:1838088
Konferanse
30th International Ocean and Polar Engineering Conference, ISOPE 2020, 11 October 2020 through 16 October 2020
Tilgjengelig fra: 2024-02-15 Laget: 2024-02-15 Sist oppdatert: 2024-02-15bibliografisk kontrollert

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