大尺度跨介质航行器高速倾斜入水冲击载荷特性研究

张彤运; 王聪; 许海雨; 夏维学; 马潇健; 赵静

doi:10.11993/j.issn.2096-3920.2024-0021

大尺度跨介质航行器高速倾斜入水冲击载荷特性研究

doi: 10.11993/j.issn.2096-3920.2024-0021

张彤运^1,,
王聪^1,,
许海雨^1,,
夏维学^2,,
马潇健^3,,
赵静^3,

1.
哈尔滨工业大学航天学院, 黑龙江哈尔滨, 150001
2.
海军工程大学基础部, 湖北武汉, 430033
3.
中国运载火箭技术研究院, 北京, 100076

基金项目: 博士后科学基金项目(2023M730836); 国家自然科学基金项目(12102484); 国家自然科学基金青年基金项目(12102475).

详细信息

作者简介:
张彤运(2000-), 男, 在读硕士, 主要研究方向为跨介质航行器数值仿真研究

通讯作者:
夏维学(1990-), 男, 讲师, 研究方向为流体力学

中图分类号: TJ631; U674
计量
- 文章访问数: 376
- HTML全文浏览量: 33
- PDF下载量: 57
- 被引次数: 0
出版历程
- 收稿日期: 2024-02-19
- 修回日期: 2024-04-01
- 录用日期: 2024-04-07
- 网络出版日期: 2024-05-27

Impact Load Characteristics of Large-Scale Trans-Medium Vehicles during High-Speed Oblique Water Entry

1.
School of Astronautics, Harbin Institute of Technology, Harbin 150001, China
2.
Department of Basic Courses, Naval University of Engineering, Wuhan 430033, China
3.
China Academy of Launch Vehicle Technology, Beijing 100076, China

摘要

摘要: 为了研究大尺度跨介质航行器高速倾斜入水冲击载荷特性, 基于流体体积多相流模型耦合S-DOF刚体运动模型构建了跨介质航行器高速倾斜入水三维非定常数值计算模型, 采用细长体高速入水自由运动试验数据对数值计算模型的计算精度进行了校核及验证, 对比研究了平头、锥头头型高速倾斜入水的冲击载荷特性。结果表明: 锥头头型入水的最大轴向、纵向冲击载荷发生的时间几乎同步, 而平头头型最大轴向冲击载荷相比纵向载荷发生的时间显著延迟; 对于最大冲击载荷, 平头头型的轴向冲击载荷大于其纵向冲击载荷, 而锥头头型的轴向、纵向冲击载荷几乎相同; 相较于平头头型, 锥头头型的轴向冲击载荷显著降低, 45°入水时, 其最大峰值约为平头头型的1/3。
- 跨介质航行器 /
- 倾斜入水 /
- 冲击载荷 /
- 多相流动
Abstract: To investigate the impact load characteristics of large-scale trans-medium vehicles during high-speed oblique water entry, a three-dimensional unsteady numerical calculation model of high-speed oblique water entry of the trans-medium vehicles was established based on the volume of fluid (VOF) multiphase flow model and the S-DOF rigid body motion mode. The calculation accuracy of the numerical calculation model was checked and verified by using the free motion test data of the slender objects during high-speed water entry, and the impact load characteristics of the vehicles with flat heads and conical heads during high-speed oblique water entry were compared. The results show that the occurrence time of the maximum axial and longitudinal impact loads of the vehicle with a conical head is almost synchronous, while the maximum axial impact load of the vehicle with a flat head is significantly delayed compared with the longitudinal load. For the maximum impact load, the axial impact load of the vehicle with a flat head is greater than its longitudinal impact load, while the axial and longitudinal impact loads of the vehicle with a conical head are almost the same. Compared to that of the vehicle with a flat head, the axial impact load of the vehicle with a conical head is significantly reduced, and the maximum peak value is about 1/3 of that of the vehicle with a flat head when the water entry angle is 45°.
- trans-media vehicle /
- oblique water entry /
- impact load /
- multiphase flow

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图 1 计算模型

Figure 1. Computational models

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图 2 计算域及边界条件

Figure 2. Compute domains and boundary conditions

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图 3 空泡形态(188 ms)

Figure 3. The shape of cavitation (188 ms)

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图 4 数值仿真与试验结果对比

Figure 4. Comparison of numerical simulation and experimental results

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图 5 平头航行器入水冲击载荷(10°入水角)

Figure 5. The shock load of a flat-headed vehicle entering the water (10° water-entry angle)

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图 6 平头航行器入水空泡形态演变(10°入水角)

Figure 6. Evolution of the cavity shape of flat-headed vehicle entering the water (10° water-entry angle)

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图 7 平头航行器入水冲击载荷(45°入水角)

Figure 7. The shock load of a flat-headed vehicle entering the water (45° water-entry angle)

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图 8 平头航行器入水空泡形态演变(45°入水角)

Figure 8. Evolution of the cavity shape of flat-headed vehicle entering the water (45° water-entry angle)

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图 9 锥头航行器入水轴向冲击载荷(10°入水角)

Figure 9. Axial impact load of cone head vehicle entering the water(45° water-entry angle)

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图 10 锥头航行器入水冲击载荷(45°入水角)

Figure 10. Impact load of cone head vehicle entering the water(45° water-entry angle)

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