Extinguishment of Composite Propellants at Low Pressures
Abstract
Propellants containing ammonium perchlorate and several commonly used polymer fuels were extinguished at low pressures. The extinguishment pressures were found to be strongly affected by the thermal environment, being lower when external flux compensated for heat loss. With a fixed thermal environment and extinguishment during depressurization, it was found that at very low depressurization rates, the extinguishment pressure depends on the rate in a manner suggesting energy starvation at the zone of first reactions. At the very low pressures, extinguishment appears to be caused by an intrinsic combustion instability featuring out-of-phase oscillations in the gasification rates of oxidant and polymer.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 10, 1973
- Accession Number
- AD0776000
Entities
People
- Alva D. Baer
- Chung Poo Park
- Norman W. Ryan
Organizations
- University of Utah