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

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资助(2023M730836); 国家自然科学基金项目资助(12102484); 国家自然科学基金青年基金项目资助(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

中图分类号: TJ631; TJ391
计量
- 文章访问数: 23
- HTML全文浏览量: 5
- PDF下载量: 5
- 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

Research on the load characteristics of large-scale trans-media vehicles with high-speed oblique water entry

1.
School of Astronautics, Harbin Institute of Technology, Harbin 150001, China
2.
, 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VOF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 and trans-media vehicles with high-speed oblique water entry, a three-dimensional unsteady numerical calculation model of high-speed oblique water entry of the trans-media vehicle was established based on the VOF multiphase flow model and the S-DOF rigid body motion model, and the calculation accuracy of the numerical calculation model is checked and verified by using the free motion test data of the slender body high-speed water entry, the impact load characteristics of the flat head and the cone head type during the process of oblique water entry at high velocity were compared and studied. The results show that the occurrence time of the maximum axial and longitudinal impact loads of the cone head type is almost synchronous, while the maximum axial impact load of the flat head type is significantly delayed compared with the longitudinal load. For the maximum impact load, the axial impact load of the flat head type is greater than its longitudinal impact load, while the axial and longitudinal impact load of the cone head type are almost the same. Compared to the flat-head type, the axial impact load of the cone head type is significantly reduced, and the maximum peak value is about 1/3 of that of the flat-head head type when the water entry angle is 45°.
- trans-media vehicle /
- oblique water entry /
- impact load /
- multiphase flow

HTML全文

图 1 计算模型

Figure 1. Computational model

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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 cavitation morphology of flat-headed vehicles 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 9 轴向载荷

Figure 9. Axial load

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图 10 锥头航行器入水冲击载荷(45°入水角)

Figure 10. Cone head entry slam load (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 vehicles entering the water (45° water entry angle)

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