- Author
-
Thompson, C. L., Jr.
|
Suh, N. P.
- Title
- Gas Phase Reactions Near the Solid-Gas Interface of a Deflagrating Double-Base Propellant Strand.
- Coporate
- South Carolina Univ., Columbia
- Report
-
AROD-6936:5-A
June 1970
7 p.
- Distribution
- Available from National Technical Information Service
- Contract
- DA-ARO-D-31-124-G1029
- Keywords
-
double base rocket propellants
|
burning rate
|
deflagration
|
vapor phases
- Abstract
- The abrupt changes in the burning rate-pressure curve of M-2 double base propellant at low pressures were experimentally investigated and were found to be caused by the existence of a series of gas reactions in the 'fuzz' zone very near the solid-gas interface. The distance between these gas reactions and the solid-gas interface decreases with increase in pressure. The gas reaction zones are at temperatures higher than the surface temperature of the solid-gas-interface. Using a model that assumes that the gas reactions only affect the heat transfer rate from the gs to the solid, the change in the burning rate of the propellant as a function of the initial temperature of the propellant was predicted. The agreement between the predictions of the theoretical model and the experimental results is good.