Journal of Shanghai Jiao Tong University

Journal of Shanghai Jiaotong University >

2019 , Vol. 53 >Issue 1: 42 - 48

DOI: https://doi.org/10.16183/j.cnki.jsjtu.2019.01.006

Prediction of Internal Solitary Wave Loads on NANHAI 8 Semi-Submersible Platform

Expand
  • School of Naval Architecture, Ocean and Civil Engineering; State Key Laboratory of Ocean Engineering; Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration (CISSE), Shanghai Jiao Tong University, Shanghai 200240, China

Online published: 2019-01-28

Fold

Abstract

A prediction method is established for internal solitary wave loads on NANHAI 8 semi-submersible platform based on internal solitary wave theory, Morison equation and pressure integral. A series of experiments were carried out to study the internal solitary wave loads in a wave flume. The inertial and drag coefficients in Morison equation for the platform have been determined by experimental results. It shows that the coefficients are not only related to Re number, KC (Keulegan-Carpenter) number and the layer thickness ratio, but also affected by the platform structures. The inertia coefficient decreases with KC number in power function, while the drag coefficient decreases with Re number in exponential function.

Key words： semi-submersible platform; internal solitary wave; model test; inertial coefficient; drag coefficient

Cite this article

CHEN Min, CHEN Ke, YOU Yunxiang, LI Fei . Prediction of Internal Solitary Wave Loads on NANHAI 8 Semi-Submersible Platform[J]. Journal of Shanghai Jiaotong University, 2019 , 53(1) : 42 -48 . DOI: 10.16183/j.cnki.jsjtu.2019.01.006

References

［1］周振威, 孙树民. 深海海洋平台发展综述［J］. 广东造船, 2012, 31(3): 63-66. ZHOU Zhenwei, SUN Shumin. Review on the deve-lopment of deep water offshore platform［J］. Guangdong Shipbuilding, 2012, 31(3): 63-66. ［2］VLASENKO V, STASHCHUK N, GUO C, et al. Multimodal structure of baroclinic tides in the South China Sea［J］. Nonlinear Processes in Geophysics, 2010, 17(5): 529-543. ［3］刘义勇, 冒家友, 原庆东, 等. 半潜式平台永久锚泊系统解脱技术及其应用——以流花11-1油田“南海挑战”号平台为例［J］. 中国海上油气, 2013, 25(3): 64-67. LIU Yiyong, MAO Jiayou, YUAN Qingdong, et al. The technique and application of the FPS permanent mooring system disconnection: A case of Nanhai Tiaozhan in Liuhua 11-1 field［J］. China Offshore Oil and Gas, 2013, 25(3): 64-67. ［4］叶吉华, 刘正礼, 罗俊丰. 深水钻井设计的技术流程与工作方法［J］. 中国海上油气, 2014, 26(3): 93-97. YE Jihua, LIU Zhengli, LUO Junfeng. Technical process and working method of deep water well drilling design［J］. China Offshore Oil and Gas, 2014, 26(3): 93-97. ［5］MICHALLET H, BARTHELEMY E. Experimental study of interfacial solitary waves［J］. Journal of Fluid Mechanics, 1998, 366: 159-177. ［6］CHOI W, CAMASSA R. Fully nonlinear internal waves in a two-fluid system［J］. Journal of Fluid Mechanics, 1999, 396: 1-36. ［7］CAMASSA R, CHOI W, MICHALLET H, et al. On the realm of validity of strongly nonlinear asymptotic approximations for internal waves［J］. Journal of Fluid Mechanics, 2006, 549(1): 1-23. ［8］HELFRICH K R, MELVILLE W K. Long nonlinear internal waves［J］. Annual Review of Fluid Mechanics, 2006, 38: 395-425. ［9］CAI S Q, LONG X M, GAN Z J. A method to estimate the forces exerted by internal solitons on cylindrical piles［J］. Ocean Engineering, 2003, 30(5): 673-689. ［10］CAI S Q, LONG X M, WANG S G. Forces and torques exerted by internal solitons in shear flows on cylindrical piles［J］. Applied Ocean Research, 2008, 30(1): 72-77. ［11］XIE J S, JIAN Y J, YANG L G. Strongly nonlinear internal soliton load on a small vertical circular cylinder in two-layer fluids［J］. Applied Mathematical Modelling, 2010, 34(8): 2089-2101. ［12］XIE J S, XU J X, CAI S Q. A numerical study of the load on cylindrical piles exerted by internal solitary waves［J］. Journal of Fluids and Structures, 2011, 27(8): 1252-1261. ［13］殷文明, 郭海燕, 吴凯锋, 等. 内孤立波对水平圆柱潜体作用力的计算［J］. 浙江大学学报(工学版), 2016, 50(7): 1252-1257. YIN Wenming, GUO Haiyan, WU Kaifeng, et al. Calculation of internal solitary wave force on horizontal submerged circular cylinder［J］. Journal of Zhejiang University (Engineering Science), 2016, 50(7): 1252-1257. ［14］张莉, 郭海燕, 李效民. 南海内孤立波作用下顶张力立管极值响应研究［J］. 振动与冲击, 2013, 32(10): 100-104. ZHANG Li, GUO Haiyan, LI Xiaomin. Extreme response of top tensioned riser under internal solitary wave in South China Sea［J］. Journal of Vibration and Shock, 2013, 32(10): 100-104. ［15］王荣耀, 刘正礼, 许亮斌, 等. 内波作用下深水钻井隔水管系统作业安全评估［J］. 中国海上油气, 2015, 27(3): 119-125. WANG Rongyao, LIU Zhengli, XU Liangbin, et al. Assessment on operation safety of deep water drilling risers in soliton environment［J］. China Offshore Oil and Gas, 2015, 27(3): 119-125. ［16］宋志军, 勾莹, 滕斌, 等. 内孤立波作用下 Spar 平台的运动响应［J］. 海洋学报, 2010, 32(2): 12-19. SONG Zhijun, GOU Ying, TENG Bin, et al. The motion responses of a Spar platform under internal solitary wave［J］. Acta Oceanologica Sinica, 2010, 32(2): 12-19. ［17］黄文昊, 尤云祥, 王旭, 等. 有限深两层流体中内孤立波造波实验及其理论模型［J］. 物理学报, 2013, 62(8): 1-14. HUANG Wenhao, YOU Yunxiang, WANG Xu, et al. Wave-making experiments and theoretical mo-dels for internal solitary waves in a two-layer fluid of finite depth［J］. Acta Physica Sinica, 2013, 62(8): 1-14. ［18］黄文昊, 尤云祥, 王旭, 等. 圆柱型结构内孤立波载荷实验及其理论模型［J］. 力学学报, 2013, 45(5): 716-728. HUANG Wenhao, YOU Yunxiang, WANG Xu, et al. Internal solitary wave loads experiments and its theoretical model for a cylindrical structure［J］. Chinese Journal of Theoretical and Applied Mechanics, 2013, 45(5): 716-728. ［19］黄文昊, 尤云祥, 石强, 等. 半潜平台内孤立波载荷实验及其理论模型研究［J］. 水动力学研究与进展A辑, 2013, 28(6): 644-657. HUANG Wenhao, YOU Yunxiang, SHI Qiang, et al. The experiments of internal solitary wave loads and their theoretical model for a semi-submersible platform［J］. Chinese Journal of Hydrodynamics A, 2013, 28(6): 644-657. ［20］黄文昊, 尤云祥, 王竞宇, 等. 张力腿平台内孤立波载荷及其理论模型［J］. 上海交通大学学报, 2013, 47(10): 1494-1502. HUANG Wenhao, YOU Yunxiang, WANG Jingyu, et al. Internal solitary wave loadsand and its theoretical model for a tension leg platform［J］. Journal of Shanghai Jiao Tong University, 2013, 47(10): 1494-1502. ［21］FALTINSEN O. Sea loads on ships and offshore structures［M］. Cambridge: Cambridge University Press, 1993. ［22］李玉成, 滕斌. 波浪对海上建筑物的作用［M］. 北京: 海洋出版社, 2002. LI Yucheng, TENG Bin. Wave action on maritime structures［M］. Beijing: China Ocean Press, 2002.
Options
Outlines

/

〈 〉