强非线性规则波中内倾船的甲板上浪数值研究  

Numerical Study of Green Water on a Tumblehome Vessel in Strong Nonlinear Regular Waves

作　　者：孙柏康 赵彬彬 徐杨 马山 段文洋 Baikang Sun;Binbin Zhao;Yang Xu;Shan Ma;Wenyang Duan(College of Shipbuilding Engineering,Harbin Engineering University,Harbin 150001,China;School of Ocean Engineering and Technology,Sun Yat-sen University,Zhuhai 519082,China)

机构地区：[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

出　　处：《哈尔滨工程大学学报（英文版）》2023年第1期102-114,共13页Journal of Marine Science and Application

基　　金：Supported by the Heilongjiang Touyan Project of China;and the Frontier Science Center of the Ministry of Education for Extreme Marine Environment Wave Fields

摘　　要：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.

关 键 词：Tumblehome vessel Green water Impact loads Wave run-up Strong nonlinear regular waves 

分 类 号：U661.32[交通运输工程—船舶及航道工程]