Impact and ricocheting of a cannonball colliding onto sea by nose-cone shape

Woo Chun Choi, Soung Min Chung, Han Seok Bang, Hae Suk Lee, Yeon Sik Cho

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

When a cannonball collides with sea water, the resulting impact force influences the cannonball trajectory, depending on launching angle, initial firing speed, incident angle, and cannonball nose-cone shape. In this study, the effect of nose-cone shape of a cannonball on impact and ricocheting behavior was investigated. During collision, the flow was assumed to be non viscous and incompressible, and a source panel method was used to determine velocity potential and pressure coefficient. The nose-cone shape was expressed by Haack-series. It was found that as the radius of curvature of a cannonball nose-cone decreases, a high impact force is resulted, and that depending on impact force and impulse, the ricocheting distance varies. The results obtained in this study can be used in researching and developing new cannonballs.

Original languageEnglish
Title of host publicationApplied Mechanics and Materials
Pages778-784
Number of pages7
Volume284-287
DOIs
Publication statusPublished - 2013 Feb 20
Event2nd International Conference on Engineering and Technology Innovation 2012, ICETI 2012 - Kaohsiung, Taiwan, Province of China
Duration: 2012 Nov 22012 Nov 6

Publication series

NameApplied Mechanics and Materials
Volume284-287
ISSN (Print)16609336
ISSN (Electronic)16627482

Other

Other2nd International Conference on Engineering and Technology Innovation 2012, ICETI 2012
CountryTaiwan, Province of China
CityKaohsiung
Period12/11/212/11/6

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Keywords

  • Cannonball
  • Collision
  • Drag coefficient
  • Haak-series
  • Impact
  • Impulse
  • Lift coefficient
  • Nose-cone
  • Ricochet
  • Shape Constant

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Choi, W. C., Chung, S. M., Bang, H. S., Lee, H. S., & Cho, Y. S. (2013). Impact and ricocheting of a cannonball colliding onto sea by nose-cone shape. In Applied Mechanics and Materials (Vol. 284-287, pp. 778-784). (Applied Mechanics and Materials; Vol. 284-287). https://doi.org/10.4028/www.scientific.net/AMM.284-287.778