自由液面对潜艇伴流场影响的试验分析  

Experimental analysis of the influence of a free surface on the wake flow of a submarine

作　　者：郭春雨[1] 韩康 韩阳[1] 王超[1] 李鹏[1] GUO Chunyu;HAN Kang;HAN Yang;WANG Chao;LI Peng(College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China)

机构地区：[1]哈尔滨工程大学船舶工程学院,黑龙江哈尔滨150001

出　　处：《哈尔滨工程大学学报》2021年第4期476-481,共6页Journal of Harbin Engineering University

基　　金：国家自然科学基金项目(52001090).

摘　　要：为了获取不同工况下潜艇伴流场的特征,本文在拖曳水池环境中采用粒子图像测速(PIV)测量方法进行分析。通过对不同潜深、不同航速下潜艇伴流场的轴向平均速度、脉动速度和流场涡量等流场特征进行测量,从而探究自由液面对潜艇伴流场的影响。结果表明:当潜深大于4倍潜艇直径时,自由液面对潜艇伴流场的影响可忽略不计,但当潜深小于4倍潜艇直径时,根据线性波浪理论,潜艇运动造成的自由液面兴波会改变伴流场的轴向速度、脉动速度及涡量。To obtain the characteristics of a submarine′s wake flow in different depths,an experiment was carried out based on the particle image velocimetry(PIV)measurement system in the towing tank environment,and the average axial velocity and pulsation velocity of the submarine wake flow under various depths and speeds were measured.Flow vorticity and other flow characteristics were measured to explore the influence of a free surface on the submarine wake flow.The results show that when the submerging depth is greater than 4D of the submarine,the influence of the free surface on the submarine wake flow can be negligible.However,when the submerging depth is less than 4D,according to the linear wave theory,the free surface wave-making caused by submarine movement changes the axial velocity,pulsation velocity,and vorticity of the wake.

关 键 词：粒子图像测速 伴流场 湍流特征 自由液面 潜艇 潜深 试验分析 拖曳水池 

分 类 号：U663.1[交通运输工程—船舶及航道工程]