KCS船舶尾流感应电磁场仿真分析

兰青; 闫林波; 任斌斌

doi:10.11993/j.issn.2096-3920.2023-0101

KCS船舶尾流感应电磁场仿真分析

doi: 10.11993/j.issn.2096-3920.2023-0101

西安工业大学基础学院, 陕西西安, 710021

基金项目: 陕西省重点研发计划(2023-YBGY-016); 西安市未央区科技计划(201843).

详细信息

作者简介:
兰青：兰　青(1989-), 男, 硕士, 主要研究方向为水下信息光学、电磁学探测

中图分类号: U674.701; TJ630
计量
- 文章访问数: 22
- HTML全文浏览量: 9
- PDF下载量: 9
- 被引次数: 0
出版历程
- 收稿日期: 2023-08-29
- 修回日期: 2023-09-28
- 录用日期: 2023-10-10
- 网络出版日期: 2024-08-13

Simulation Analysis of KCS Ship Wake Induced Electromagnetic Field

School of Sciences, Xi’an Technological University, Xi’an 710021, China

摘要

摘要: 为了更系统地研究船舶在航行过程中引起的尾流感应电磁场, 文中以有限元法为基础, 利用磁流体力学、麦克斯韦方程组等电磁场和流体力学理论, 对KCS船尾流运动产生的感应电磁场进行仿真分析。结果表明: KCS船尾流感应磁场量级在可探测范围内, 有明显的分布规律; 尾流感应磁场在传播方向上存在极值, 其大小与测量位置相关; 尾流感应磁场先随距离增大到极值, 再沿传播距离方向逐渐衰减; 尾流电流密度沿传播距离方向逐渐衰减。文中的研究可为海洋电磁探测及船舶跟踪和定位等研究提供参考。
- 船舶尾流 /
- 感应电磁场 /
- 磁流体力学 /
- 有限元法
Abstract: In order to more systematically study the wake induced electromagnetic field caused during the navigation, the electromagnetic field generated by the electromagnetic field and fluid field theory based on FEM. The results show that the wake induced magnetic field of KCS is within the detectable range; the wake induced magnetic field increases in the propagation direction and its magnitude is related to the measurement position; the wake induced magnetic field increases with the distance to the extreme and then gradually decreases along the propagation distance; and the wake current density decreases along the propagation distance.
- ship wake /
- induced electromagnetic field /
- magnetic fluid dynamics /
- finite element method

HTML全文

图 1 KCS集装箱船

Figure 1. KCS container ship

下载: 全尺寸图片幻灯片

图 2 船体坐标系示意图

Figure 2. Schematic diagram of the hull coordinate system

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图 3 计算域网格划分

Figure 3. Calculate the domain meshes

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图 4 测量点(z=−0.1L_pp)处磁场强度和磁场分量沿x方向传播曲线

Figure 4. At the measuring point (0.1 times the ship) B、B_x、B_y、B_z along x-axis

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图 5 海平面处磁场强度和磁场分量沿x方向传播曲线

Figure 5. At the sea level $ {B_z} $ along x-axis

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图 6 不同测量点下磁场强度沿y、z方向传播曲线

Figure 6. The B propagation curve along y axis and z axis under different measurement points

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图 7 不同测量位置处电流密度沿不同方向的变化曲线

Figure 7. Current density along z-axis

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表 1 KCS集装箱船主要参数

Table 1. Main Parameters of the KCS Container Ship

参数	实船	船模
船长L_pp/$ {\text{m}} $	230.0	7.278 6
型宽W/m	32.2	1.019 0
型深D/m	19.0	0.601 3
设计吃水d/m	10.8	0.341 8
湿表面积S/m²	9 424	9.437 9
方形系数C_b	0.650 5	0.650 5
设计状态F_rd	0.260	0.260 0
设计航速V/(m/s)	12.345 6	2.196 2

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