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典型文献
Modeling tail bubble dynamics during the launch of an underwater vehicle using the boundary element method
文献摘要:
A tail bubble is generated behind a high-speed vehicle at the early stage of the underwater launch process.The tail bubble dynamic behavior involves expansion,overexpansion,contraction,pinch-off and jet formation,and it significantly influences the vehicle's movement.However,the tail bubble dynamic behavior is an issue not very well studied.This paper establishes a numerical model for the interaction between the tail bubble and the vehicle based on the boundary element method(BEM)to gain new insight into this issue.The BEM results are compared to a computational fluid dynamics model to validate the numerical model,and good agreement is achieved.Additionally,a convergence test of the BEM model is conducted to verify its independence of the mesh size.The influence of some governing parameters on the evolution of the tail bubble is then systematically studied,focusing on its maximum radius,pinch-off time,and pinch-off position.There are two pinch-off position regimes of the tail bubble,one at the bottom and the other near the middle.
文献关键词:
作者姓名:
Shao-hua Cheng;Xiao-bo Quan;Sai Zhang;Tian-yuan Zhang;Shuai Li
作者机构:
College of Shipbuilding Engineering,Harbin Engineering University,Harbin 150001,China;Beijing Institute of Astronautical Systems Engineering,Beijing 100076,China;China Academy of Launch Vehicle Technology,Beijing 100076,China
引用格式:
[1]Shao-hua Cheng;Xiao-bo Quan;Sai Zhang;Tian-yuan Zhang;Shuai Li-.Modeling tail bubble dynamics during the launch of an underwater vehicle using the boundary element method)[J].水动力学研究与进展B辑,2022(03):434-443
A类:
overexpansion
B类:
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AB值:
0.50224
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