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- Title
Numerical simulation of high-speed water-entry for hemispherical-nosed projectile.
- Authors
Yu-Song Sun; Sui-Hua Zhou; Xiao-Bing Zhang
- Abstract
Aiming at the lack research of high-speed water-entry for large projectile, this paper studied the high-speed water-entry for hemispherical-nosed projectile in the method of fluid-solid coupling. Good agreements were obtained compared with the theoretical results. The modalities of water were calculated such as cavity, uplift and pressure. The velocity and deceleration curves of water-entry were gained. Numerical research shows that there is heavy shock pressure on the projectile and pressure waves in water by a projectile impacting into water at high speed, the pressure at the apex and the vicinity is much higher than the rest of area. The projectile's peak acceleration is in linear correlation with the square of impact velocity. The simulation affords bases for impact-resistant design of the airdropped projectile, and of certain value to investigation of other correlative bodies' high-speed water-entry.
- Subjects
COMPUTER simulation; P-waves (Seismology); PRESSURE wave superchargers; PROJECTILES; NOISE
- Publication
Vibroengineering Procedia, 2017, Vol 11, p190
- ISSN
2345-0533
- Publication type
Article
- DOI
10.21595/vp.2017.18490