Accession Number:

AD0747781

Title:

An Experimental and Theoretical Study on Ablative and Evaporative Cooling in the Interior Ballistics

Descriptive Note:

Final scientific rept. for Jan 1970-Apr 1971

Corporate Author:

IOWA UNIV IOWA CITY DEPT OF MECHANICAL ENGINEERING

Personal Author(s):

• Chen, Ching J.
• Chang, Lang M.

Report Date:

1971-08-01

Pagination or Media Count:

190.0

Abstract:

The report explores a better prediction of film cooling convective coefficient for a simplified model of the interior ballistics problem. The experiment includes design and modification of cooling projectiles, conversion and interpretation of experimental data. The theoretical study deals with the solution of gas dynamics and heat transfer in a unsteady compressible, two phase flow with nonisothermal wall. Author-PL

Descriptors:

• *GUN BARRELS
• *INTERIOR BALLISTICS
• COMPUTER PROGRAMS
• MATHEMATICAL MODELS
• EVAPORATION
• OBTURATION(BALLISTICS)
• FILM COOLING
• CONVECTION(HEAT TRANSFER)
• COOLING
• ABLATION

Subject Categories:

• Ballistics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE