Accession Number:

AD0904040

Title:

Finite Difference Calculations of the Free-Air Gun Blast About the Muzzle of a 5in./54 Naval Gun

Descriptive Note:

Technical rept.

Corporate Author:

NAVAL WEAPONS LAB DAHLGREN VA

Personal Author(s):

• Moore, G. R.

Report Date:

1972-09-01

Pagination or Media Count:

46.0

Abstract:

A two-dimensional hydrodynamic code has been used to calculate the free-air blast field about the muzzle of a 5-in.54 cal Naval gun. The calculated blast pressure wave as a function of time is presented along with the velocity field. Calculated overpressures and durations are compared with experimental data. The calculations predict the formation and location of the shock bottle and formation of the smoke ring.

Descriptors:

• *NAVAL GUNS
• EXHAUST GASES
• EXPERIMENTAL DATA
• EQUATIONS OF MOTION
• GUN BARRELS
• PROJECTILES
• SHOCK WAVES
• COMPUTER PROGRAMMING
• DIFFERENCE EQUATIONS
• MATHEMATICAL PREDICTION
• PRESSURE
• PARTIAL DIFFERENTIAL EQUATIONS
• HYDRODYNAMICS
• BLAST
• DIGITAL COMPUTERS
• MOMENTUM
• EXTERIOR BALLISTICS
• INTERIOR BALLISTICS
• VELOCITY
• SIMULATION

Subject Categories:

• Explosions
• Ballistics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE