Journal
ANNUAL REVIEW OF FLUID MECHANICS, VOL 46
Volume 46, Issue -, Pages 355-378Publisher
ANNUAL REVIEWS
DOI: 10.1146/annurev-fluid-011212-140753
Keywords
free-surface impact; air entraining; supercavitating; cavity formation; sphere; bullet; ballistics
Categories
Ask authors/readers for more resources
The free-surface impact of solid objects has been investigated for well over a century. This canonical problem is influenced by many physical parameters, including projectile geometry, material properties, fluid properties, and impact parameters. Through advances in high-speed imaging and visualization techniques, discoveries about the underlying physics have improved our understanding of these phenomena. Improvements to analytical and numerical models have led to critical insights into cavity formation, the depth and time of pinch-off, forces, and trajectories for myriad different impact parameters. This topic spans a wide range of regimes, from low-speed entry phenomena dominated by surface tension to high-speed ballistics, for which cavitation is important. This review surveys experimental, theoretical, and numerical studies over this broad range, utilizing canonical images where possible to enhance intuition and insight into the rich phenomena.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available