|Table of Contents|

Citation:
　Baikang Sun,Binbin Zhao,Yang Xu,et al.Numerical Study of Green Water on a Tumblehome Vessel in Strong Nonlinear Regular Waves[J].Journal of Marine Science and Application,2023,(1):102-114.[doi:10.1007/s11804-023-00319-9]
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Numerical Study of Green Water on a Tumblehome Vessel in Strong Nonlinear Regular Waves

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Title:
Numerical Study of Green Water on a Tumblehome Vessel in Strong Nonlinear Regular Waves
Author(s):
Baikang Sun1;  Binbin Zhao1;  Yang Xu2;  Shan Ma1;  and Wenyang Duan1
Affilations:
Author(s):
Baikang Sun1;  Binbin Zhao1;  Yang Xu2;  Shan Ma1;  and Wenyang Duan1
1 College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China;
2 School of Ocean Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
Keywords:
Tumblehome vessel|Green water|Impact loads|Wave run-up|Strong nonlinear regular waves
分类号:
-
DOI:
10.1007/s11804-023-00319-9
Abstract:
Owing to the large amplitude and nonlinearity of extreme sea waves, sailing ships exhibit obvious large-amplitude motion and green water. For a tumblehome vessel, a low-tumblehome freeboard and wave-piercing bow make green water more likely. To study the green water of a wave-facing sailing tumblehome vessel in strong nonlinear regular waves, the computational fluid dynamics software STAR-CCM+ was used. The Reynolds-averaged Navier–Stokes method was used for the numerical simulation, and the k-epsilon model was adopted to deal with viscous turbulence. The volume of the fluid method was used to capture the free surface, and overset grids were utilized to simulate the large-amplitude ship motion. This study delves into the influence of wave height on the ship motion response and a tumblehome vessel green water under a large wave steepness (0.033 ≤ H/λ ≤ 0.067) at Fr = 0.22. In addition, the dynamic process of green water and the “wave run-up” phenomenon were evaluated. The results suggest that when the wavelength is equal to the ship length and the wave steepness increases to 0.056, the increase in the water height on the deck is obvious. However, the wave height had little effect on the green water duration. The wave steepness and “backwater” have a great impact on the value and number of the peak of the water height on the deck. When the wave steepness exceeded 0.056, the water climbed up, and the plunging-type water body was formed at the top of the wave baffle, resulting in a large water area on the deck.

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Memo

Memo:
Received date:2022-10-26;Accepted date:2023-1-2。<br>Foundation item:Supported by the Heilongjiang Touyan Project of China, and the Frontier Science Center of the Ministry of Education for Extreme Marine Environment Wave Fields.<br>Corresponding author:Binbin Zhao,E-mail:zhaobinbin@hrbeu.edu.cn
Last Update: 2023-04-10