Accession Number : AD0836770

Title :   COMBUSTION IRREGULARITIES OF SOLID PROPELLANTS.

Descriptive Note : Final summary rept. 1 Oct 65-30 Sep 66,

Corporate Author : UTAH UNIV SALT LAKE CITY DEPT OF CHEMICAL ENGINEERING

Personal Author(s) : Ryan, Norman W.

Report Date : 01 AUG 1967

Pagination or Media Count : 9

Abstract : Two principal objectives were attained: (1) Investigation in depth of certain operating characteristics of the T-burner and (2) Development of a preliminary theory of L* instability, treating it as self-excited oscillatory combustion and correlating the nonacoustic instability of a class of PBAA/AP propellants by means of the theory. The work consisted largely of early stages of developing a new type of T-burner for studying acoustic instability (cylindrical, side-vented chamber burning premixed gases introduced through a permeable frit in one end) and of formulating a more general version of the theory of nonacoustic instability. Two problems, are under continuing study, to determine the acoustic admittance of the frit and to minimize chamber-coupled pressure and composition transients in the gas feed system. (Author)

Descriptors :   *COMBUSTION), (*SOLID ROCKET PROPELLANTS, COMPOSITE PROPELLANTS, OSCILLATION, STABILITY, PRESSURE, BURNING RATE, GASES, TRANSIENTS, COMBUSTION CHAMBERS, EQUATIONS, FREQUENCY, MODEL TESTS.

Subject Categories : Combustion and Ignition
      Solid Rocket Propellants

Distribution Statement : APPROVED FOR PUBLIC RELEASE