Accession Number:

ADA184770

Title:

Erosive Burning Study of Stick Propellants.

Descriptive Note:

Interim rept.,

Corporate Author:

PENNSYLVANIA STATE UNIV UNIVERSITY PARK DEPT OF MECHANICAL ENGINEERING

Report Date:

1987-08-06

Pagination or Media Count:

11.0

Abstract:

A theoretical model was solved numerically for simulating erosive-burning processes occurring inside the center perforation of an unslotted NOSOL-363 stick propellant. Results show that the erosive-burning phenomenon is caused by the enhanced heat feedback from the gas phase to solid phase resulting from the combined effect of increased turbulent mixing and reduction in flame stand-off distance from the burning surface. The real-time X-ray radiography system was demonstrated to be a powerful and reliable tool for nonintrusive measurements of instantaneous burning rates. A model was validated by experimental data in terms of time variation of internal diameter distributions. Thermal wave structures of NOSOL-363 stick propellants under erosive- and strand-burning conditions were measured by fine-wire thermocouples.

Subject Categories:

  • Ammunition and Explosives
  • Armor
  • Combustion and Ignition

Distribution Statement:

APPROVED FOR PUBLIC RELEASE