上海交通大学学报 ›› 2019, Vol. 53 ›› Issue (1): 42-48.doi: 10.16183/j.cnki.jsjtu.2019.01.006

• 学报(中文) • 上一篇    下一篇

南海八号深水半潜式平台内孤立波载荷预报

陈敏,陈科,尤云祥,李飞   

  1. 上海交通大学 船舶海洋与建筑工程学院; 海洋工程国家重点实验室; 高新船舶与深海开发装备协同创新中心, 上海 200240
  • 出版日期:2019-01-28 发布日期:2019-01-28
  • 通讯作者: 陈科,男,博士后,电话(Tel.):021-62932147;E-mail:raulphan@sjtu.edu.cn.
  • 作者简介:陈敏(1989-),女,湖北省荆州市人,博士生,主要研究方向为海洋平台内孤立波载荷特性.
  • 基金资助:
    国家自然科学基金资助项目 (11372184),国家重点基础研究发展规划(973)项目(2015CB251203)

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

CHEN Min,CHEN Ke,YOU Yunxiang,LI Fei   

  1. 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:2019-01-28 Published:2019-01-28

摘要: 结合3类内孤立波理论模型KdV、eKdV和MCC与Morison公式和压差力公式,建立了南海八号深水半潜式平台的内孤立波载荷预报方法.利用大型内波水槽开展了南海八号深水半潜式平台的内孤立波载荷模型实验,分析了Morison公式中南海八号深水半潜式平台的惯性力系数和拖曳力系数.结果表明,Morison公式中的惯性力系数和拖曳力系数不仅与雷诺数Re、KC(Keulegan-Carpenter)数以及两层流体的上下层厚度比有关,而且与平台的结构形式有关.对于南海八号深水半潜式平台,Morison公式中的惯性力系数与KC数之间呈幂函数关系,拖曳力系数与Re之间呈指数函数关系.

关键词: 半潜式平台, 内孤立波, 模型实验, 惯性力系数, 拖曳力系数

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

中图分类号: