Experimental study of forces on a multi-column floating platform in internal solitary waves

被引：35
作者：
Chen, Min [1 ,2 ]
Chen, Ke [1 ,2 ]
You, Yun-Xiang [1 ,2 ]
Yu, Hai-Ting [1 ,2 ]
机构：
[1] Shanghai Jiao Tong Univ, State Key Lab Ocean Engn, Shanghai 200240, Peoples R China
[2] Collaborat Innovat Ctr Adv Ship & Deep Sea Explor, Shanghai 200240, Peoples R China
来源：
APPLIED OCEAN RESEARCH | 2018年 / 78卷
基金：
中国国家自然科学基金;
关键词：
Internal solitary wave (ISW); Floating platform; Model tests; Wave forces; Empirical coefficients; CIRCULAR-CYLINDER; SOLITONS; PROPAGATION; LOAD;
D O I：
10.1016/j.apor.2018.06.014
中图分类号：
P75 [海洋工程];
学科分类号：
0814 ; 081505 ; 0824 ; 082401 ;
摘要：
Experiments were conducted to study the forces exerted by internal solitary waves (ISWs) on a floating platform. Depression ISWs were generated by a piston-type wave maker in a density stratified two-layer fluid in a 30-mlong wave flume. Experimental ISWs were compared with ISW theoretical models in terms of frequency-amplitude relationships. The forces and moments on the multi-column floating platform model were measured. Based on the experimental results, the empirical coefficients Cm and Cd are obtained as a function of KC, Reynolds number and the layer depth h(1)/h. The force prediction based on Morison's equation and pressure integral were also performed, and the calculated results are well consistent with the measurements. Besides, the forces and moments increase linearly with the wave amplitude, and the maximums of the horizontal forces and moments increase with the layer depth h(1)/h decreasing.
引用
收藏
页码：192 / 200
页数：9
相关论文
共 41 条
[1]   The formation and fate of internal waves in the South China Sea [J].
Alford, Matthew H. ;
Peacock, Thomas ;
MacKinnon, Jennifer A. ;
Nash, Jonathan D. ;
Buijsman, Maarten C. ;
Centuroni, Luca R. ;
Chao, Shenn-Yu ;
Chang, Ming-Huei ;
Farmer, David M. ;
Fringer, Oliver B. ;
Fu, Ke-Hsien ;
Gallacher, Patrick C. ;
Graber, Hans C. ;
Helfrich, Karl R. ;
Jachec, Steven M. ;
Jackson, Christopher R. ;
Klymak, Jody M. ;
Ko, Dong S. ;
Jan, Sen ;
Johnston, T. M. Shaun ;
Legg, Sonya ;
Lee, I-Huan ;
Lien, Ren-Chieh ;
Mercier, Matthieu J. ;
Moum, James N. ;
Musgrave, Ruth ;
Park, Jae-Hun ;
Pickering, Andrew I. ;
Pinkel, Robert ;
Rainville, Luc ;
Ramp, Steven R. ;
Rudnick, Daniel L. ;
Sarkar, Sutanu ;
Scotti, Alberto ;
Simmons, Harper L. ;
St Laurent, Louis C. ;
Venayagamoorthy, Subhas K. ;
Wang, Yu-Huai ;
Wang, Joe ;
Yang, Yiing J. ;
Paluszkiewicz, Theresa ;
Tang, Tswen-Yung .
NATURE, 2015, 521 (7550) :65-U381
[2]  
Bole J., 1994, OFFSHORE TECHNOLOGY, P304
[3]   Forces and torques exerted by internal solitons in shear flows on cylindrical piles [J].
Cai, Shuqun ;
Long, Xiaomin ;
Wang, Shengan .
APPLIED OCEAN RESEARCH, 2008, 30 (01) :72-77
[4]   The effect of a seasonal stratification variation on the load exerted by internal solitary waves on a cylindrical pile [J].
Cai Shuqun ;
Xu Jiexin ;
Chen Zhiwu ;
Xie Jieshuo ;
Deng Xiaodong ;
Lv Haibin .
ACTA OCEANOLOGICA SINICA, 2014, 33 (07) :21-26
[5]   An Overview of Internal Solitary Waves in the South China Sea [J].
Cai, Shuqun ;
Xie, Jieshuo ;
He, Jianling .
SURVEYS IN GEOPHYSICS, 2012, 33 (05) :927-943
[6]   A simple estimation of the force exerted by internal solitons on cylindrical piles [J].
Cai, SQ ;
Wang, SG ;
Long, XM .
OCEAN ENGINEERING, 2006, 33 (07) :974-980
[7]   A method to estimate the forces exerted by internal solitons on cylindrical piles [J].
Cai, SQ ;
Long, XM ;
Gan, ZJ .
OCEAN ENGINEERING, 2003, 30 (05) :673-689
[8]   On the realm of validity of strongly nonlinear asymptotic approximations for internal waves [J].
Camassa, R ;
Choi, W ;
Michallet, H ;
Rusås, PO ;
Sveen, JK .
JOURNAL OF FLUID MECHANICS, 2006, 549 :1-23
[9]   Experimental investigation of internal solitary wave forces on a semi-submersible [J].
Chen, Min ;
Chen, Ke ;
You, Yun-Xiang .
OCEAN ENGINEERING, 2017, 141 :205-214
[10]  
DJORDJEVIC VD, 1978, J PHYS OCEANOGR, V8, P1016, DOI 10.1175/1520-0485(1978)008<1016:TFADOI>2.0.CO
12345