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)


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    Titel :

    Rocket Research at Georgia Tech


    Beteiligte:
    E. W. Price (Autor:in) / W. C. Strahle (Autor:in) / B. T. Zinn (Autor:in) / J. E. Hubbartt (Autor:in) / R. K. Sigman (Autor:in)

    Erscheinungsdatum :

    1981


    Format / Umfang :

    165 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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