Accession Number:

ADA020429

Title:

Water Entry and the Cavity-Running Behavior of Missiles

Descriptive Note:

Final technical rept.,

Corporate Author:

NAVSEA HYDROBALLISTICS ADVISORY COMMITTEE SILVER SPRING MD

Personal Author(s):

• May, Albert

Report Date:

1975-01-01

Pagination or Media Count:

458.0

Abstract:

This report contains a comprehensive compilation of test data and analytical techniques for predicting the behavior of vehicles during water entry and during the cavity-running phase. It contains data to predict the water impact forces on nose shapes such as disks, cones, ogives, spheres, cusps, disk ogives, etc. during vertical and oblique water entry. Cavity development phenomena are discussed and approximate ways of predicting cavity size and shape are presented. Stability characteristics during the early running phase are also discussed. In general, the report is intended to provide the necessary data for the design of water-entry ordnance.

Descriptors:

• *PROJECTILES
• *WATER ENTRY
• GEOMETRIC FORMS
• FLUID DYNAMICS
• UNDERWATER BALLISTICS
• SURFACE TO UNDERWATER
• UNDERWATER TRAJECTORIES

Subject Categories:

• Ammunition and Explosives
• Ballistics
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE