水下航行器不同机头母线特征的尾流分析  

Wake analysis of different nose bus characteristics of underwater vehicles

作　　者：张溟睿 姜根柱[1] 王筱蓉[1] 危昊翔 ZHANG Mingrui;JIANG Genzhu;WANG Xiaorong;WEI Haoxiang(School of Mechanical Engineering,Jiangsu University of Science and Technology,Zhenjiang 212100,China)

机构地区：[1]江苏科技大学机械工程学院,江苏镇江212100

出　　处：《舰船科学技术》2025年第5期31-36,共6页Ship Science and Technology

基　　金：江苏省研究生创新基金项目(SJCX221930)。

摘　　要：水下航行器的机头对于冲击具有很强的非线性影响,机头母线特征对尾流结构和稳定性起着重要的作用。本文采用粒子图像测速技术,在雷诺数1.0×10^(5)≤Re≤1.3×10^(5)和淹深比h/D=1、2范围内,对2种不同的机头弧面半径与机身半径之比λ进行实验研究,利用加速度计和高速摄像机对水下航行器进行实验。结果表明,淹深比和机头设计对尾流特性和稳定性有显著影响。在淹深比为1时,小比例机头尾流影响范围较小且流场更稳定。随着机体比例增加,尾流影响范围扩大,冲击载荷增加。当淹深比为2时,消除自由表面影响后,尾流流动特性受雷诺数影响更加明显。The nose of an underwater vehicle has a strong nonlinear impact on impact,and the characteristics of the nose busbar play an important role in the wake structure and stability.This article uses particle image velocimetry techno-logy to conduct experimental research on two different ratios of nose radius to body radius,2,within the range of Reynolds number 1.0×10^(5)≤Re≤1.3×10^(5) and submergence ratio h/D-1,2.Experiments were conducted on underwater vehicles using accelerometers and high-speed cameras.The results indicate that the flooding depth ratio and nose design have a signi-ficant impact on the wake characteristics and stability.When the submergence ratio is 1,the influence range of the small pro-portion nose wake is smaller and the flow field is more stable.As the proportion of the body increases,the range of wake in-fluence expands and the impact load increases.When the submergence ratio is 2,after eliminating the influence of free sur-face,the wake flow characteristics are more significantly affected by Reynolds number.

关 键 词：水下航行器 母线特征 淹深比 射流 

分 类 号：TP242.3[自动化与计算机技术—检测技术与自动化装置]