基于涡旋光束传输的水下航行器尾流流场探测

周志超; 唐云晴; 许凌飞; 顾村锋; 刘平安

doi:10.11993/j.issn.2096-3920.2024-0076

基于涡旋光束传输的水下航行器尾流流场探测

doi: 10.11993/j.issn.2096-3920.2024-0076

1.
上海机电工程研究所, 上海, 201109
2.
哈尔滨工程大学航天与建筑工程学院, 黑龙江哈尔滨, 150006

基金项目: 中央高校基本科研业务费(3072022JC0201); 中央高校基本科研业务费(3072024XX0201).

详细信息

通讯作者:
刘平安 (1982-), 男, 博士, 教授, 主要研究方向为流体力学.

中图分类号: TJ630; U368
计量
- 文章访问数: 53
- HTML全文浏览量: 25
- PDF下载量: 14
- 被引次数: 0
出版历程
- 收稿日期: 2024-05-08
- 修回日期: 2024-07-15
- 录用日期: 2024-07-24
- 网络出版日期: 2024-09-02

Wake Flow Field Detection of Undersea Vehicles Based on Vortex Beam Propagation

ZHOU Zhichao^1
,,
TANG Yunqing^2
,,
XU Lingfei^1
,,
GU Cunfeng^1
,,
LIU Pingan^{2
, ,}

1.
Shanghai Electro-Mechanical Engineering Institute, Shanghai 201109, China
2.
College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, China

摘要

摘要: 涡旋光场轨道角动量(OAM)在自由空间衍射中是保持不变的, 而在湍流层中由于流场内部存在拟序结构, 导致OAM谱分布对称性破缺, 且OAM也会发生改变。文中研究了基于OAM谱分布对称性破缺效应对流场流动结构进行探测的机理, 初步分析了将涡旋光场OAM应用于水下航行器探测的可行性并给出相关试验结果。此外, 根据光场总OAM也会发生改变的特性, 结合交叉OAM矩阵法, 阐述了基于OAM对不同流场特征进行辨识的理论依据。最后研究了涡旋光场对水介质的感知特性, 结合数值仿真结果, 提出了1个基于OAM传输特性探测水下航行器的技术构想。
- 水下航行器 /
- 涡旋光束 /
- 尾流轨道角动量 /
- 交叉OAM矩阵法
Abstract: In free-space diffraction, the orbital angular momentum(OAM)of the vortex light field remains unchanged. However, in a turbulent layer, the symmetry of the OAM spectrum distribution will be broken, and the OAM will change due to the existence of a quasi-ordered structure in the flow field. In this paper, the mechanism of detecting the flow structure by using the symmetry breaking of OAM spectrum distribution was investigated. The feasibility of applying OAM of vortex light field to detect undersea vehicles was analyzed, and relevant test results were given. In addition, according to the characteristics that the total OAM of the light field also changes, the theoretical basis for identifying the characteristics of different flow fields based on OAM was elaborated through the cross-OAM matrix method. Lastly, the perception characteristics of the water medium of the vortex light field were studied. Combined with the results of numerical simulation, a technical concept for detecting undersea vehicles based on the characteristics of OAM propagation was proposed.
- undersea vehicle /
- vortex beam wake /
- orbital angular momentum /
- cross-OAM matrix

HTML全文

图 1 OAM谱分布图像

Figure 1. OAM spectral distribution image

下载: 全尺寸图片幻灯片

图 2 水槽模拟实验结果

Figure 2. Experiment results of sink simulation

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图 3 基于Rayleigh-Bénard湍流的数值仿真结果

Figure 3. Numerical simulation results based on Rayleigh-Bénard turbulence

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参考文献(13)

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