Accession Number : ADA324359

Title :   Combustion Mechanisms of Solid Propellants.

Descriptive Note : Annual rept. 1 Oct 92-30 Sep 93,

Corporate Author : GEORGIA INST OF TECH ATLANTA SCHOOL OF AEROSPACE ENGINEERING

Personal Author(s) : Price, E. W. ; Sigman, R. K.

PDF Url : ADA324359

Report Date : 08 SEP 1993

Pagination or Media Count : 609

Abstract : This report includes results of several ongoing efforts: (a) Modifications were made in the computer codes for 2-D diffusion flames to reduce the computation times. A reduction by about 50% was achieved. (b) A survey of the literature on combustion of AP-HC sandwiches was made. (c) A study of catalysis of burning rate of sandwiches with Fe203 in the binder lamina was extended to the case where fine AP was added to the binder lamina. The results showed that catalysis of reactions in the region of the burning surface are important (contrary to earlier results with catalysts plus binder alone). (d) Studies of melting and decomposition were run on several oxidizers, binders, and combinations using a hot-stage microscope (results are included). (e) Preliminary studies were made of mechanisms that cause plateau burning in AP-HC binder propellants. Results indicate that binder melt flow over the AP surfaces is a major factor (confirming past speculation). (f) Revisions were made in the laboratory facilities to permit testing at higher pressures and with more hazardous materials.

Descriptors :   *COMBUSTION, *SOLID PROPELLANTS, COMPUTER PROGRAMS, COMPUTATIONS, HIGH PRESSURE, SURFACES, MELTING, OXIDIZERS, CATALYSIS, DIFFUSION, FLOW, FLAMES, BURNING RATE, BINDERS, DECOMPOSITION, HAZARDOUS MATERIALS, IRON OXIDES.

Subject Categories : Combustion and Ignition
      Solid Rocket Propellants

Distribution Statement : APPROVED FOR PUBLIC RELEASE