TY - GEN
T1 - Numerical analysis of wave impact loads on semi-submersible platform
AU - Liao, Kangping
AU - Duan, Wenyang
AU - Ma, Qingwei
AU - Ma, Shan
AU - Zhao, Binbin
AU - Hu, Changhong
N1 - Funding Information:
A pivotal aspect in design of a semi-submersible platform is that the deck is kept free of impact, since the extreme wave impact loads can result in structural damage. The distance between the free surface and the deck of platform is called air gap. A good designer will try to keep the air gap as small as possible for economic reasons, but large enough to prevent the deck from being impacted by a wave. However, in rough sea conditions (such as heavy storms, typhoon), a semi-submersible platform * Professor and author of correspondence This research was partially supported by the National Natural Science Foundation of P.R. China (51409060) and the Numerical Tank Project sponsored by the Ministry of Industry and Information Technology (MIIT) of P. R. China.
Funding Information:
This work was partially supported by the National Natural Science Foundation of China (51409060) and the Numerical Tank Project sponsored by the Ministry of Industry and Information Technology (MIIT) of P. R. China. The authors are also grateful to thank MARINTEK for providing the experimental data according to the EXWAVE Joint Industry Project (EXWAVE JIP).
Publisher Copyright:
© Copyright 2017 ASME.
PY - 2017
Y1 - 2017
N2 - In rough sea conditions, semi-submersible platform often suffers from extreme wave impact loads, which can result in structural damage. It is important to predict the wave impact loads on semi-submersible platform. Therefore, the purpose of this study is to investigate the wave impact loads on semisubmersible platform with numerical methods. A numerical method, based on a fixed regular Cartesian grid system, has been developed by the authors. In the method, the FDM (Finite Difference Method) is applied for solving flow field, and the THINC/SW (Tangent of Hyperbola for INterface Capturing with Slope Weighting) model, which is kind of VOF (Volumeof- Fluid) model, is adopted to capture the free surface. Some selected model test cases, form Exwave JIP project, will be used to validate the present numerical method and to analyze the wave impact loads on semi-submersible platform.
AB - In rough sea conditions, semi-submersible platform often suffers from extreme wave impact loads, which can result in structural damage. It is important to predict the wave impact loads on semi-submersible platform. Therefore, the purpose of this study is to investigate the wave impact loads on semisubmersible platform with numerical methods. A numerical method, based on a fixed regular Cartesian grid system, has been developed by the authors. In the method, the FDM (Finite Difference Method) is applied for solving flow field, and the THINC/SW (Tangent of Hyperbola for INterface Capturing with Slope Weighting) model, which is kind of VOF (Volumeof- Fluid) model, is adopted to capture the free surface. Some selected model test cases, form Exwave JIP project, will be used to validate the present numerical method and to analyze the wave impact loads on semi-submersible platform.
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U2 - 10.1115/OMAE2017-62464
DO - 10.1115/OMAE2017-62464
M3 - Conference contribution
AN - SCOPUS:85032865064
T3 - Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
BT - Offshore Technology
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2017
Y2 - 25 June 2017 through 30 June 2017
ER -