Accession Number : ADA114771

Title :   Rocket Research at Georgia Tech.

Descriptive Note : Final rept. 1 Oct 77-30 Sep 81,


Personal Author(s) : Price,E W ; Strahle,W C ; Zinn,B T ; Hubbartt,J E ; Sigman,R K

PDF Url : ADA114771

Report Date : Nov 1981

Pagination or Media Count : 165

Abstract : Progress is reported on four investigations of fundamentals of rockets and reaction propulsion: (1) Measurement of the dynamic response of solid propellant combustion to flow oscillations, using an impedance tube method. Measurements were made of pressure-coupled combustion response and bulk damping of aluminized and nonaluminized propellants, and the development of an apparatus for measurement of velocity coupled response is near completion; (2) Use of external base burning as a means of producing reduced drag or positive thrust on a supersonic bluff base flight vehicle. Flow field and surface measurements were made in cold flow simulation and in hydrogen fueled tests in a Mach test duct; (3) Combustion of powdered aluminum as a fuel ingredient in solid propellants. A variety of tests were developed and used to clarify and control the agglomeration-combustion behavior of aluminum that usually compromises its effectiveness as a fuel; and (4) Turbulence-generated noise in the interior flow of rocket motors. Measurements were made in cold flow simulators of solid rocket combustors, and results were compared with predictions based on adaptation of the Bernoulli enthalpy theory of aeroacoustics. (Author)

Descriptors :   *Solid propellants, *Combustion, *Flow, *Research management, Test methods, Test facilities, Oscillation, Simulation, Cold flow, Enthalpy, Thrust, Rocket engines, Response, Hydrogen, Dynamic response, Damping, Simulators, Flow fields, Drag reduction, Mach number, Measurement

Subject Categories : Combustion and Ignition
      Solid Rocket Propellants

Distribution Statement : APPROVED FOR PUBLIC RELEASE