摘要
为了更真实地掌握舰船破损后的稳性及姿态变化过程,弥补现有不沉性设计主要考虑平衡状态忽略中间过程存在的问题,降低舰船设计中存在的风险,对处于大破损口状态下舰船在破损初期的稳性进行了研究。通过对静水条件下瞬态破损进水的数值仿真方法研究,采用Truvof法实现了船舶破损进水过程的粘性动态模拟,并在此基础上开展了舰船模型在典型状态下瞬态破损进水的粘流数值预报。结果表明,舰船在发生瞬态进水初期所产生的瞬时横倾角远大于进水达到稳定状态时的横倾角,这将在一定程度上影响舰船的稳性。
In order to master the actual process of a warship’s damage and to make up some insufficiencies in the existing method of unsinkability calculation which has ignored the middle process before the equilibrium state,it is necessary to study the stability of an attacked warship with a large damaged opening in the early stage of damage.This method also can reduce the risk in the ship design process.Through the study on the numerical simulation method of transient flooding following damage in clam water,the Truvof method was used in the article to simulate the viscous flow of the dynamic process when the warship was damaged.Then the viscous flow numerical prediction of the transient flooding in typical state is carried out.The result shows that the heeling angle is much larger in the initial stage of transient flooding than in the equilibrium state,which will affect the stability of the warship to a certain extent.
作者
黄卫刚
李鹏
HUANG Wei-gang;LI Peng(China Ship Design and Research Center,Wuhan 430064,China)
出处
《船舶力学》
EI
CSCD
北大核心
2020年第11期1402-1412,共11页
Journal of Ship Mechanics
基金
装备预研共用技术基金项目(9140A14030915CB31004)。
关键词
破损进水
大破损口
静水
数值仿真
flooding water
large damaged opening
clam water
numerical simulation
