哈尔滨工程大学学报2023，Vol.55Issue(10)：1772-1778,7.DOI:10.11990/jheu.202206019
内孤立波对海洋工程结构物作用的时空演变研究
Spatiotemporal evolution of internal solitary wave action on offshore engineering structures
摘要
Abstract
Severe convergence and sudden strong currents may occur during the propagation process,posing a serious threat to offshore oil and gas platforms,oil pipelines,and other offshore structures.Based on high-quality observational data,through the internal wave mode decomposition and Morison equation,the force of internal solitary waves on small-diameter circular piles is studied,including the total force,the variation of the force with time,the distribution of the force along the water depth and the magnitude of the force component.The research results show that the total force acting on the pile is dominated by the first mode;When the wave trough reaches,the acting force on the pile will reach the maximum value,and the magnitude of the acting force will increase first and then decrease;The direction of drag force and inertia force of the upper and lower layers of fluid are opposite,and the direction of drag force and inertia force are opposite in the same layer of fluid;When the internal solitary wave passes through,the inertia force calculated by Morison equation has no obvious change trend.Compared with the drag force,the inertia force has a small value and has little influence on the total force,which can be basically ignored.The results of this study provide a reference for the design of offshore oil and gas drilling platform.关键词
内孤立波/内波/桩柱/作用力/Morison公式/时空演变/模态结构/南海Key words
internal solitary wave/internal wave/pile/acting force/Morison formula/spatiotemporal evolution/modal structure/South China Sea分类
交通工程引用本文复制引用
刘倩,曾丽娟,崔健,欧阳佚卓,高俊亮,张瑞瑞..内孤立波对海洋工程结构物作用的时空演变研究[J].哈尔滨工程大学学报,2023,55(10):1772-1778,7.基金项目
国家自然科学基金项目(42076005) （42076005）
江苏省自然科学基金项目(BK20210885) （BK20210885）
江苏省高等学校自然科学研究项目(20KJD17005). （20KJD17005）
