规则波下半潜式平台波浪爬升数值模拟  

Numerical simulation of wave run-up of semi-submersible offshore platform under regular wave

作　　者：杨晓彤 赵伟文 万德成[1] YANG Xiao-tong;ZHAO Wei-wen;WAN De-cheng(Computational Marine Hydrodynamics Lab(CMHL),School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学船海计算水动力学研究中心(CMHL)船舶海洋与建筑工程学院,上海200240

出　　处：《水动力学研究与进展（A辑）》2021年第1期48-55,共8页Chinese Journal of Hydrodynamics

基　　金：国家自然科学基金(51879159,51909160);长江学者奖励计划(T2014099);国家重点研发计划项目(2019YFB1704200,2019YFC0312400);工信部数值水池创新专项课题(2016-23/09)。

摘　　要：在波浪与平台相互作用时,波浪会沿平台立柱爬升,甚至能爬升至平台下甲板的情况,严重影响平台安全。该文应用基于Open FOAM开源平台的naoe-FOAM-SJTU求解器,对固定的半潜式平台在规则波下的波浪爬升现象进行了数值模拟,采用边界输入法进行造波,并且在数值水池末端设置松弛区进行消波。该文重点聚焦在由于入射波浪和平台相互作用导致的波浪爬升,以及入射波和反射波的叠加造成的波面非线性扰动特性,对固定平台的波浪爬升和气隙响应进行了数值模拟,并考察了固定平台立柱间距以及波浪浪向对波浪爬升的影响。When the wave interacts with the platform, the wave will climb along platform columns, and even climb to the platform deck, which seriously affects the safety of the platform. In this paper, the naoe-FOAM-SJTU solver based on the open source package OpenFOAM is used to numerically simulate wave run-up on the fixed semi-submersible platform under the regular wave, the boundary input method is used to generate the wave, and the sponge layer is provided at the end of the numerical wave tank to eliminate the wave. This article focuses on the wave run-up caused by the interaction between the incident wave and the platform, and the nonlinear disturbance characteristics of the wave surface caused by the superposition of the incident wave and the reflected wave. The numerical simulation of the wave run-up and air gap response of the fixed platform is carried out. And The effect of the distance between the platform columns and the wave direction on the wave run-up is also investigated.

关 键 词：波浪爬升 固定平台 规则波 naoe-FOAM-SJTU求解器 

分 类 号：O357[理学—流体力学]