Accession Number : AD0743701

Title :   Solid-Propellant Combustion Instability Suppression Devices.

Descriptive Note : Final rept. 7 Dec 70-7 Oct 71,

Corporate Author : ROCKETDYNE CANOGA PARK CALIF

Personal Author(s) : Oberg,Carl L. ; Wong,Ted L. ; Burkes,William M.

Report Date : JUN 1972

Pagination or Media Count : 225

Abstract : A program has been performed to develop design criteria and design methods which may be used to ensure effective operational use of suppression devices to prevent acoustic modes of combustion instability in solid-propellant motors. The program comprised analytical studies and laboratory experimental studies, with T-burners and acoustic models being employed for the experimental work. Analytical studies of the stabilization processes brought about by the suppression devices have been performed. Problems relating to the manufacturing, durability, and installation are being investigated. Experimental studies of the stabilization processes have been made; acoustic models and a variation of the T-burner have been utilized for this purpose. (Author)

Descriptors :   (*SOLID ROCKET PROPELLANTS, *SCREAMING COMBUSTION), SOLID PROPELLANT ROCKET ENGINES, COMBUSTION, STABILITY, ACOUSTIC IMPEDANCE, BAFFLES, ORIFICES, INTERIOR BALLISTICS

Subject Categories : Combustion and Ignition
      Solid Rocket Propellants

Distribution Statement : APPROVED FOR PUBLIC RELEASE