Accession Number : AD0777727

Title :   An Investigation of Solid Propellant Combustion in Standard and High Acceleration Environments.

Descriptive Note : Final rept. 1 Jul 72-1 Jan 74,


Personal Author(s) : Abraham,M. , III ; Klahr,O. A. ; Gerhardt,R. R. ; Netzer,D. W.

Report Date : MAR 1974

Pagination or Media Count : 56

Abstract : Nonmetallized double-base and composite propellant, metallized composite propellant, and ammonium perchlorate (AP)/binder sandwich combustion were studied in standard and high acceleration environments. Experimental techniques used were high speed motion pictures, two-color schlieren, laser schlieren, and centrifuge mounted combustion bombs. It was found for double-base propellant that the temperature increased continuously from the surface into the visible flame. Acceleration induced burning rate augmentation occurred and resulted in elimination of the visible flame. AP/binder sandwich combustion was also found to be acceleration sensitive with binder flow-AP interactions proposed as the mechanism. Composite propellants burned with local diffusion flames to pressures as low as 100 psi. A comparison is made between AP/binder sandwich combustion and propellant combustion. (Modified author abstract)

Descriptors :   *Combustion, *Solid rocket propellants, *Composite propellants, Burning rate, Ammonium perchlorate, Sandwich construction, Lasers, Schlieren photography, Acceleration

Subject Categories : Combustion and Ignition
      Solid Rocket Propellants

Distribution Statement : APPROVED FOR PUBLIC RELEASE