Motion prediction of catamaran with a semisubmersible bow in wave

• Autorzy: Sun H. , Jing F. , Jiang Y. , Zou J. , Zhuang J. , Ma W.

Identyfikatory

DOI

10.1515/pomr-2016-0006

• Języki publikacji: EN

Abstrakty

EN

Compared with standard vessels, a slender catamaran with a semi-submerged bow (SSB) demonstrates superior seakeeping performance. To predict the motion of an SSB catamaran, computational fluid dynamics methods are adopted in this study and results are validated through small-scale model tests. The pitch, heave, and vertical acceleration are calculated at various wavelengths and speeds. Based on the overset grid and motion region methods, this study obtains the motion responses of an SSB catamaran in regular head waves. The results of the numerical studies are validated with the experimental data and show that the overset grid method is more accurate in predicting the motion of an SSB catamaran; the errors can be controlled within 20%. The movement data in regular waves shows that at a constant speed, the motion response initially increases and then decreases with increasing wavelength. This motion response peak is due to the encountering frequency being close to the natural frequency. Under identical sea conditions, the motion response increases with the increasing Froude number. The motion prediction results, that derive from a shortterm irregular sea state, show that there is an optimal speed range that can effectively reduce the amplitude of motion.

Słowa kluczowe

EN

SSB catamaran; model test; overset grid; motion region; motion response

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2016
• Tom: nr 1
• Strony: 37--44
• Opis fizyczny: Bibliogr. 16 poz., rys., tab.

Twórcy

autor

Sun H.

• College of Shipbuilding Engineering Harbin Engineering University Nan tong street Harbin HLJ P. R. CHINA

autor

Jing F.

• College of Shipbuilding Engineering Harbin Engineering University Nan tong street Harbin HLJ P. R. CHINA

autor

Jiang Y.

• College of Shipbuilding Engineering Harbin Engineering University Nan tong street Harbin HLJ P. R. CHINA

autor

Zou J.

• College of Shipbuilding Engineering Harbin Engineering University Nan tong street Harbin HLJ P. R. CHINA

autor

Zhuang J.

• College of Shipbuilding Engineering Harbin Engineering University Nan tong street Harbin HLJ P. R. CHINA

autor

Ma W.

• College of Shipbuilding Engineering Harbin Engineering University Nan tong street Harbin HLJ P. R. CHINA

Bibliografia

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• 3. Lian’en Zhao, Yi He, Jide Li, et al. A Study on Motion Performance of Multi-hull Wave Piercer, Shipbuilding of China, 1997(4): 20-28.
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• 8. Xujie Wang, Shuzheng Sun, Xiaodong Zhao, et al. Research on model test of thousands-tons class high seakeeping performance hybrid monohull, Journal of Ship Mechanics, 2011, 15(4): 343-349.
• 9. Ni Gao, Shuzheng Sun, Zaibai Qin, et al. Model test research on WPC with semi-submerged appendage, J. Huazhong Univ. of Sci. Tech. (Natural Science Edition), 2013, 41(3): 97-100.
• 10. S RE Silva, CG Soares. Prediction of parametric rolling in waves with a time domain non-linear strip theory model, Ocean Engineering, 72 (2013): 453–469.
• 11. Rui Deng. Numerical Research on Influence of the Interceptor on Catamaran Hydrodynamic Performances [D], Harbin Engineering University, 2010.
• 12. Li Wang. The Applicability Analysis of the Usually Applied Turbulence Models and the Numerical Simulation of the Flow Around a Foil using VOF Method [D], Huazhong University of Science and Technology, 2007.
• 13. Shulian Tian. Investigation of Overset Unstructured Grids Algorithm [D], Nanjing University of Aeronautics and Astronautics, 2008.
• 14. Jingxin Liu, HU Akay, Akin Ecer, et al. Flows Around Moving Bodies Using a Dynamic Unstructured Oversetgrid Method, International Journal of Computational Fluid Dynamics, 2010, 24(6): 187-200.
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• 16. Jide Li. Seakeeping Performance of Ship [M], Harbin Engineering University Press, 2007.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.