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An Investigation of Solid Propellant Combustion in Standard and High Acceleration Environments.
Final rept. 1 Jul 72-1 Jan 74,
NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF
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Nonmetallized double-base and composite propellant, metallized composite propellant, and ammonium perchlorate APbinder 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. APbinder 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 APbinder sandwich combustion and propellant combustion. Modified author abstract
APPROVED FOR PUBLIC RELEASE