| 拓扑优化技术在抑制流体晃荡中的数值模拟研究 |
| |
| 引用本文： | 卫志军,申利敏,关晖,孙铭婧,吴锤结. 拓扑优化技术在抑制流体晃荡中的数值模拟研究[J]. 应用数学和力学, 2021, 42(1): 49-57. DOI: 10.21656/1000-0887.410206 |
| |
| 作者姓名： | 卫志军 申利敏 关晖 孙铭婧 吴锤结 |
| |
| 作者单位： | 1大连理工大学 海岸和近海工程国家重点实验室, 辽宁 大连 116024;2国防科技大学 气象海洋学院, 南京 211101;3大连理工大学 航空航天学院, 辽宁 大连 116024 |
| |
| 基金项目： | 国家自然科学基金(11602051)；中国博士后科学基金(2016M591433)；辽宁省自然科学基金(20170540151)；〖JP〗中央高校基本科研业务费(DUT19RC(3)023) |
| |
| 摘 要： | 流体晃荡问题广泛存在于船舶与海洋工程领域,任何部分载液的储罐运载装备在运动过程中均存在晃荡问题.当外界激励频率接近液舱内流体自由液面的固有频率时,很容易产生剧烈的晃荡,产生极大的冲击力,进而引起结构损害.因此,研究有效的减晃方案,以抑制流体晃荡带来的冲击具有重要意义.该文研究了基于自主研制的数值程序模拟长方体液舱内的流...
|
| 关 键 词： | 晃荡 拓扑优化 晃荡抑制 隔板 |
| 收稿时间： | 2020-07-10 |
Numerical Simulation of Topology Optimization Technique for Tank Sloshing Suppression |
| |
| Affiliation: | 1State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian, Liaoning 116024, P.R.China;2College of Meteorology and Oceanography, National University of Defense Technology, Nanjing 211101, P.R.China;3School of Aeronautics and Astronautics, Dalian University of Technology, Dalian, Liaoning 116024, P.R.China |
| |
| Abstract: | The problem of liquid sloshing exists widely in the fields of ships and ocean engineering. When the external excitation frequency is close to the natural frequency of the fluid in the tank, it is easy to produce violent sloshing and great forces, thus causing structural damage. Therefore, it is of great significance to study the effective method to control the impact of liquid sloshing. A numerical program was developed to study the sloshing problem in rectangular tanks with the topology optimization technique. In the numerical program the finite difference method was used to solve the homogeneous and incompressible 3D unsteady Navier-Stokes equations. The free surface was captured with the VOF/PLIC method and a topology optimization program based on the optimal control theory was applied to optimize the shape of baffles in the tank. The sloshing problem with given-shape double baffles and topologically optimized double baffles in the tank was calculated respectively and the kinematics and dynamic characteristics of the flow field with baffles were analyzed. The results show that, the topology optimization of the baffle shape brings better effects of sloshing suppression, which provides a new research idea for the sloshing problems in the fields of ships, ocean engineering and aerospace. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《应用数学和力学》浏览原始摘要信息 |
|
点击此处可从《应用数学和力学》下载免费的PDF全文 |
|
