Page 103 - 《爆炸与冲击》2026年第11期
P. 103
第 46 卷 李 腾,等: 头部锥角对弹体高速入水流场变化特性的影响 第 11 期
Air movement
Free surface
Water impact Complete Cavity
instant Cavitation
formation water entry expansion
t=−3.4 ms t=0 ms t=3.2 ms t=6.4 ms t=11.2 ms
Cavity closure Decay and
collapse
of wake
cavity
Further
extension
of tail
cavity
t=15.6 ms t=20.0 ms t=24.8 ms t=29.2 ms t=35.6 ms
图 8 弹体入水运动过程
Fig. 8 Motion process of the projectile’s water entry
0
113
−0.5
112
−1.0
Displacement/m −1.5 Velocity/(m·s −1 ) 110
111
109
−2.0
108
−2.5
107
−3.0
0 5 10 15 20 25 30 0 5 10 15 20 25 30
Time/ms Time/ms
图 9 弹体高速入水试验中的位移和速度随时程曲线
Fig. 9 Displacement and velocity histories of the projectile during water entry
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