Experimental and numerical study of the water entry of projectiles at high oblique entry speed
Experimental and numerical study of the water entry of projectiles at high oblique entry speed
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高斜入速度弹丸入水实验与数值研究
DOI：
10.1016/j.oceaneng.2020.107574
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发表时间：
2020-09
影响因子：
5
通讯作者：
B.B. Zhao
中科院分区：
文献类型：
--
作者：
Z.J. Song;W.Y. Duan;G.D. Xu;B.B. Zhao
对圆柱形弹丸高斜速入水进行了实验研究和数值模拟。对三种头部和不同长度的弹丸进行了试验。弹丸以不同角度发射，用高速摄像机记录了超空泡的发展过程。在入水期间，由于初始速度和/或流体动力冲击力的偏差而发生偏转。观察了无偏转弹丸超空泡的演化过程。研究发现，空泡的坍缩和新空泡的产生交替发生。采用计算流体力学方法模拟了超空泡入水初期的运动和演化过程，分析了典型的压力分布。阻力系数主要由机头形状决定。
The water entry of cylindrical projectiles at high oblique speed has been investigated experimentally and numerically. Projectiles with three types of noses and different lengths are tested. The projectiles are lunched at different angles, and the development of supercavities are recorded using high-speed camera. During the water entry, deflections occur due to the deviation of the initial velocity and/or the hydrodynamic impact force. The evolution of the supercavities of projectile without deviation is observed. It is found that the collapse of cavity and the generation of new cavity occur alternatively. The motion and the evolution of supercavities at the initial stage of the water entry are simulated through computational fluid dynamics, the typical pressure distributions have been analysed. The drag coefficients are dominated by the nose shape.
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影响因子：
3.6
作者：
Bao C. M.;Wu G. X.;Xu G. D.
通讯作者：
Xu G. D.
湍流减阻添加剂影响圆柱弹丸周围入水超空泡流瞬态行为的数值研究
影响因子：
6.4
作者：
Shuai, Zhi-Jun;Zhang, Xiang-Yuan;Li, Wan-You;Li, Feng-Chen
通讯作者：
Li, Feng-Chen
DOI：
--
发表时间：
2008-11
期刊：
Bulletin of the American Physical Society
影响因子：
--
作者：
T. Truscott;J. T. Gomez;D. Beal;A. Techet
通讯作者：
T. Truscott;J. T. Gomez;D. Beal;A. Techet
影响因子：
1.3
作者：
E. V. Paryshev
通讯作者：
E. V. Paryshev
DOI：
10.1007/bf03185659
发表时间：
2000-05
期刊：
KSME International Journal
影响因子：
--
作者：
Min Hyung Lee
通讯作者：
Min Hyung Lee