Numerical Analyses of Ice Jamming in Jacket Platform Conductor Array in Bohai Sea  

作　　者：ZHAI Bi-yao YANG Fan PAN Jun-ning XIE Dong-mei 

机构地区：[1]River and Harbour Engineering Department,Nanjing Hydraulic Research Institute,Nanjing 210029,China [2]The National Key Laboratory of Water Disaster Prevention,Nanjing 210098,China

出　　处：《China Ocean Engineering》2023年第6期885-896,共12页中国海洋工程（英文版）

基　　金：jointly supported by the National Key R&D Program of China (Grant No.2021YFB2600700);the Central PublicInterest Scientific Institution Basal Research Fund of China (Grant Nos.Y221007 and Y223005)。

摘　　要：Serious ice accumulating,pile-up and ice jamming occur around the conductor array of offshore jacket platforms during the winter every year in Bohai Sea,which could cause grave threats to the stability of platform structure,the safety of people and equipment,and even severer calamity.Therefore,the process of ice accumulation and ice jamming in the jacket platform area needs more concern.This study focuses on ice accumulation and jamming behaviors in the jacket platform conductor area by using a coupled two-dimensional hydro-ice dynamics model.A series of cases are conducted with different flow conditions,such as flow velocity,drifting direction and oscillatory flow.Through the simulation,the ice pile-up process is described and changes in ice-jamming thickness,ice pile-up location and ice pile-up volume are investigated.The differences in ice pile-up in the steady flow and oscillatory flow are analyzed.This study proposes a new approach to simulate the ice jamming process in the jacket platform conductor area,providing a reference for ice management on the platform.

关 键 词：sea ice ice jamming conductor array numerical modeling hydro-ice dynamics 

分 类 号：P75[天文地球—海洋科学]