Numerical simulations of FPSO with sloshing tanks in a random freak waves

被引：8
|
作者：
Zhuang, Yuan [1 ]
Wang, Guo [2 ]
Wan, De-cheng [1 ]
Wu, Jian-wei [3 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Naval Architecture Ocean & Civil Engn, Computat Marine Hydrodynam Lab CMHL, Shanghai 200240, Peoples R China
[2] Marine Design & Res Inst China, Shanghai 200011, Peoples R China
[3] Wuhan Second Ship Design & Res Inst, Wuhan 430205, Peoples R China
来源：
JOURNAL OF HYDRODYNAMICS | 2022年 / 34卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Ship motion with sloshing tank; high-order-spectral-computational fluid dynamics (HOS-CFD) method; naoe-FOAM-SJTU solver; freak waves; ORDER SPECTRAL METHOD; SHIP MOTION;
D O I：
10.1007/s42241-022-0036-1
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
This paper presents a potential-viscous coupled method to simulate a floating production storage and offloading (FPSO) with two liquefied natural gas (LNG) sloshing tanks in a random freak wave. The potential theory uses high-order-spectral (HOS) method. The random wave is generated by HOS for 2 000 s, and a freak wave is observed around 1 830 s. The FPSO LNG model was firstly verified in regular waves using HOS-computational fluid dynamics (CFD) coupled method and validated the HOS-CFD coupled method can solve the ship motion coupled with sloshing tanks accurately. The FPSO with LNG tanks are then simulated in the freak wave, showed the coupling effects when the freak wave passes. With the existence of the sloshing tanks, the amplitude of the roll motion decreases and the period of roll motion changed. Wave breaking phenomenon can be observed when the wave crest of the freak wave encounters with the ship.
引用
收藏
页码：491 / 498
页数：8
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