内波作用下水下航行体应急上浮的运动及水动力数值模拟研究  

Numerical simulation and analysis of submarine's emergency ascent movement and hydrodynamic characteristics in internal waves

作　　者：黄苗苗[1] 张楠[1] 李迎华[1] 王文涛[1] HUANG Miao-miao;ZHANG Nan;LI Ying-hua;WANG Wen-tao(National Key Laboratory of Science and Technology on Hydrodynamics,China Ship Scientific Research Center,Wuxi 214082,China)

机构地区：[1]中国船舶科学研究中心水动力学重点实验室,江苏无锡214082

出　　处：《船舶力学》2023年第9期1283-1293,共11页Journal of Ship Mechanics

基　　金：共性技术项目(50907010101)。

摘　　要：海洋内波是边缘海普遍存在的现象,非线性内波尤其是大振幅的内孤立波对于水下航行体的安全航行具有重要影响。本文首先采用RANS方法结合运动控制方程,开展内波作用下的水下航行体自由运动过程数值模拟及分析,结果显示,在不采取主动操控措施的情况下,水下航行体被内波快速拖入波谷。然后对该耦合运动过程开展详细分析。在此基础上采用数值计算方法重点研究遭遇内波后实施紧急操控后的应急上浮运动,详细分析该过程的运动及流场特征,并进行理论对比分析。The internal wave is a common marine phenomenon in ocean,especially in the marginal sea.Nonlinear solitary waves,especially with a large amplitude,are serious threats to the safe navigation of submarines.RANS method and motion governing equations were adopted to simulate the free motion of a submarine under the impacts of internal waves.The result shows that the submarine without active controls is dragged into the wave trough quickly,which is a coupled motion process.The process was analyzed in detail in the paper.On this basis,the submarine's emergency ascent was highlighted and numerical method of blowing ballasts tanks in internal waves was investigated.Then the submarine motion as well as flow field during emergency ascent were simulated and analyzed.Besides,the results were compared with those of theoretical analysis.

关 键 词：内波 水下航行体 应急上浮 数值模拟 

分 类 号：U661.1[交通运输工程—船舶及航道工程]