| 近自由面水下爆炸气泡运动的数值计算研究 |
| |
| 引用本文： | 李健,荣吉利,项大林. 近自由面水下爆炸气泡运动的数值计算研究[J]. 工程力学, 2011, 0(6): 200-205,218 |
| |
| 作者姓名： | 李健 荣吉利 项大林 |
| |
| 作者单位： | 北京理工大学宇航学院;广西工学院汽车工程系; |
| |
| 基金项目： | 国防基础科研项目(A2220060028); 广西自然科学基金项目(2010GXNSFB013007) |
| |
| 摘 要： | 采用体积加速度模型确定水下爆炸气泡运动的初始条件,基于MSC.DYTRAN有限元软件开发了定义流场初始条件和边界条件的子程序,对近水面水下爆炸气泡脉动全物理过程和自由面水冢运动特性进行了数值模拟,将气泡脉动全过程和水冢运动高度的计算结果分别与实验结果、经验公式进行对比,验证有限元模型建立和子程序开发的正确性.以此为基础...
|
| 关 键 词： | 爆炸力学 水下爆炸 气泡脉动 近自由面 环状 水冢 |
NUMERICAL STUDY OF BUBBLE MOTION BY UNDERWATER EXPLOSION NEAR FREE SURFACE |
| |
| LI Jian,RONG Ji-li,XIANG Da-lin. NUMERICAL STUDY OF BUBBLE MOTION BY UNDERWATER EXPLOSION NEAR FREE SURFACE[J]. Engineering Mechanics, 2011, 0(6): 200-205,218 |
| |
| Authors: | LI Jian RONG Ji-li XIANG Da-lin |
| |
| Affiliation: | LI Jian1,2,RONG Ji-li1,XIANG Da-lin1(1.School of Aerospace Engineering,Beijing Institute of Technology,Beijing 100081,China,2.Department of Automobile Engineering,Guangxi University of Technology,Liuzhou 545006,China) |
| |
| Abstract: | The volume-acceleration model was introduced to determine the initial condition for bubble motion by underwater explosion.From the basic phenomenon of the interaction between bubble and free surface,the dynamic behavior of bubble near free surface including the ring rebound of bubble and the dome of free surface was simulated and analyzed using MSC.DYTRAN finite element analysis software with the developed subroutine that defines the initial value and boundary conditions of the fluid field.The computational... |
| |
| Keywords: | explosion mechanics underwater explosion bubble pulse near free surface ring dome |
| 本文献已被 CNKI 等数据库收录！ |
|
