Volume 39 Issue 11
Nov.  2019
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LUO Yuchuan, HUANG Zhengui, GAO Jianguo, CHEN Zhihua, HOU Yu, GUO Zeqing. Experiment research of low-speed oblique water-entry of truncated cone-shaped projectile[J]. Explosion And Shock Waves, 2019, 39(11): 113902. doi: 10.11883/bzycj-2018-0498
Citation: LUO Yuchuan, HUANG Zhengui, GAO Jianguo, CHEN Zhihua, HOU Yu, GUO Zeqing. Experiment research of low-speed oblique water-entry of truncated cone-shaped projectile[J]. Explosion And Shock Waves, 2019, 39(11): 113902. doi: 10.11883/bzycj-2018-0498

Experiment research of low-speed oblique water-entry of truncated cone-shaped projectile

doi: 10.11883/bzycj-2018-0498
  • Received Date: 2018-12-13
  • Rev Recd Date: 2019-03-19
  • Available Online: 2019-10-25
  • Publish Date: 2019-11-01
  • In this work we conducted comparative experiments of different truncated cone-nosed projectiles entering water at low-speed and oblique inclination to investigate the influence of the size of the head diameter on water-entry cavity and ballistic characteristics using high-speed photography. We observed and recorded the effects of the size of the head diameter on the cavitational evolution, velocity and pitch angle of the truncated cone-nosed projectiles. The following results were achieved: the larger the truncated cone head projectile diameter, the earlier the tail collides with the low surface cavity; the size of the head diameter has little effect on the cavity deep closure moment; the cavity of projectile increases with the increase of the head diameter; an excessively large or small head diameter is not conducive to the stability of water entry; when the water entry velocity of the projectile is below the critical velocity, the velocity shows an upward trend, while when it is above the critical velocity, it will show a downward trend.
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