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  • 1970-1974  (7)
  • 1
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    A comparison of analysis and experiment for solid propellant combustion instability (1971)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Combustion instability data with same solid propellants by T-burner and L super asterisk burner, discussing theoretical models of transient combustion
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: ; BROTECHNIKA, NO. 2(
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    NASA TECHNICAL REPORTS
  • 2
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    Measurements of wall heat transfer in the presence of large-amplitude combustion-driven oscillations (1974)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: In the studies reported use was made of the T-burner to obtain a correlation between the average heat transfer coefficient along the burner and the amplitude of the flow oscillations. The T-burner used consists of a centrally-vented cylindrical chamber with disks of solid propellant bonded in each end. The obtained data provide a basis for predicting heat transfer rates in other combustion chambers containing oscillatory flows.
    Keywords: FLUID MECHANICS AND HEAT TRANSFER
    Type: Combustion Science and Technology; 9; 1-2,; 1974
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  • 3
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    Influence of mechanical properties on the combustion of propellants (1973)
    In:  Other Sources
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    Publication Date: 2019-06-27
    Description: Experimental study of the effects of minor compositional variables upon the combustion behavior of composite solid propellants. More specifically, it was attempted to determine the influence of ingredients that improve the mechanical properties upon the oscillatory combustion characteristics. Tests were carried out in the familiar Crawford bomb, a low-pressure L-star burner, and a high-pressure T-burner. Two families of propellants were investigated; each family consists of two propellants with a minor compositional variation between them. In the family that shows a decreasing (steady state) pressure index (n) with increasing pressures, all of the combustion characteristics are found to be very similar although the mechanical properties are widely different. In the other family, which shows an increasing n with increasing pressures, unmistakable differences are found between the two propellants in the low-pressure L-star instability behavior (along with the differences in the mechanical properties), while the other combustion characteristics are almost identical. The results are interpreted to be consistent with a theory that highlights the importance of condensed phase heat-transfer effects.
    Keywords: PROPELLANTS
    Type: Combustion Science and Technology; 8; 4, 19; 1973
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  • 4
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    Comparison of approximate and numerical analyses of nonlinear combustion instability (1974)
    In:  Other Sources
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    Publication Date: 2019-07-13
    Description: At the present time, there are three general analytical techniques available to study problems of unsteady motions in rocket motors: linear stability analysis; approximate nonlinear analysis, founded on examining the behavior of coupled normal modes; and numerical calculations based on the conservation equations for one-dimensional flows. The last two yield the linear results as a limit. It is the main purpose of this paper to check the accuracy of the approximate analysis against the numerical analysis for some special cases. The results provide some justification for using the approximate analysis to study three-dimensional problems.
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: AIAA PAPER 74-201 , Aerospace Sciences Meeting; Jan 30, 1974 - Feb 01, 1974; Washington, DC
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  • 5
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    Role of condensed phase details in the oscillatory combustion of composite propellants. (1973)
    In:  Other Sources
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    Publication Date: 2019-07-13
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: AIAA PAPER 73-218 , Aerospace Sciences Meeting; Jan 10, 1973 - Jan 12, 1973; Washington, DC
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  • 6
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    Research on combustion instability and application to solid propellant rocket motors. II. (1972)
    In:  Other Sources
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    Publication Date: 2019-07-13
    Description: Review of the current state of analyses of combustion instability in solid-propellant rocket motors, citing appropriate measurements and observations. The work discussed has become increasingly important, both for the interpretation of laboratory data and for predicting the transient behavior of disturbances in full-scale motors. Two central questions are considered - namely, linear stability and nonlinear behavior. Several classes of problems are discussed as special cases of a general approach to the analysis of combustion instability. Application to motors, and particularly the limitations presently understood, are stressed.
    Keywords: PROPULSION SYSTEMS
    Type: AIAA PAPER 72-1049 , Joint Propulsion Specialist Conference; Nov 29, 1972 - Dec 01, 1972; New Orleans, LA; US
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  • 7
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    Research on combustion instability and application to solid propellant rocket motors (1971)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Combustion instability with wave motion coupling in solid propellant rocket motors due to energy gain and loss mechanisms within chamber
    Keywords: PROPULSION SYSTEMS
    Type: AIAA PAPER 71-753 , PROPULSION JOINT SPECIALIST CONFERENCE; Jun 14, 1971 - Jun 18, 1971; SALT LAKE CITY, UT; US
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