Numerical Investigation on the Hydrodynamic Diference Between Internal and External Turret-Moored FLNG  

作　　者：赵文华 杨建民 胡志强 魏跃峰 

机构地区：[1]State Key Laboratory of Ocean Engineering, Shanghai Jiaotong University

出　　处：《Journal of Shanghai Jiaotong university(Science)》2013年第5期590-597,共8页上海交通大学学报（英文版）

基　　金：the China National Significant Science&Technology Research Program(No.2008ZX05026-006)

摘　　要：Motion responses of the floating liquefied natural gas(FLNG)hull and the mooring loads in a 100-year return environmental condition are predicted with the help of the well known coupled dynamic analysis code DeepC.A ship-shaped turret-moored FLNG moored by 4×3 chain-polyester-chain lines in 1.5 km depth of water is studied.Two types of turrets such as internal and external turrets,resulting from diferent locations of the turrets,are adopted respectively in the numerical simulations.Motion responses of the FLNG hull and forces of the mooring lines obtained from the internal turret case and external turret case are compared with each other.Significant diferences are obtained.Statistic analysis is also used to analyze the comparison results,and efects of the turret location on the FLNG hydrodynamic characteristics are summed up.The conclusion regarding the hydrodynamic diferences between internal and external turret-moored FLNG systems would provide help for design of the FLNG system.Motion responses of the floating liquefied natural gas（FLNG）hull and the mooring loads in a 100-year return environmental condition are predicted with the help of the well known coupled dynamic analysis code DeepC.A ship-shaped turret-moored FLNG moored by 4×3 chain-polyester-chain lines in 1.5 km depth of water is studied.Two types of turrets such as internal and external turrets,resulting from diferent locations of the turrets,are adopted respectively in the numerical simulations.Motion responses of the FLNG hull and forces of the mooring lines obtained from the internal turret case and external turret case are compared with each other.Significant diferences are obtained.Statistic analysis is also used to analyze the comparison results,and efects of the turret location on the FLNG hydrodynamic characteristics are summed up.The conclusion regarding the hydrodynamic diferences between internal and external turret-moored FLNG systems would provide help for design of the FLNG system.

关 键 词：turret-moored floating liquified natural gas(FLNG) HYDRODYNAMICS numerical simulation statistic analysis 

分 类 号：P751[交通运输工程—港口、海岸及近海工程]