斜浪中内倾船运动响应与甲板上浪特性研究
Investigation of Motion Response and Green Water of Tumblehome Ship in Oblique Waves
胡开业 1毛丽君 1曹嘉荣 1孙明亮 1刘宁1
作者信息
- 1. 哈尔滨工程大学船舶工程学院,哈尔滨 150001
- 折叠
摘要
内倾船因其良好的隐身性能而受到各国关注,但是内倾设计形式会使船体在波浪中航行时更容易发生甲板上浪现象,严重的甲板上浪会造成甲板结构的破坏,甚至船体倾覆.斜浪中内倾船的运动响应和甲板上浪特性与迎浪中显著不同,论文选取3个艏斜浪向开展内倾船运动响应与甲板上浪研究.通过势流方法筛选发生甲板上浪的海浪工况,并应用Star-CCM+黏流计算软件进行数值验证分析;通过研究船体运动响应和纵向、横向甲板上浪的高度与压力,分析不同浪向下内倾船的运动响应与甲板上浪特性.结果表明,内倾船发生甲板上浪的波长船长比随着浪向角的增大而增大.
Abstract
Tumblehome ships have good stealth performance,but the adoption of the tumblehome design makes the hull more prone to green water phenomena when sailing in waves.The motion response of the tumblehome ship in oblique waves is significantly different from that in head waves.In this study,three bow oblique wave angles are selected to investigate the motion response of tumblehome ships and green water phenomena.The occurrence of green water is analyzed with the potential flow method,and a set of grid schemes is developed and verified using the Star-CCM+viscous flow software.Green water,pressure in the longitudinal and transverse directions,motion response,and green water in different wave directions are analyzed.The results show that the wavelength-to-ship length ratio of green water in a tumblehome ship increases with the increase of the wave angle.
关键词
内倾船/斜浪/CFD/甲板上浪Key words
tumblehome ship/oblique waves/computational fluid dynamics/green water引用本文复制引用
出版年
2024
NETL
NSTL
万方数据