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Author: Martin Summerfield
Publisher: Elsevier
ISBN: 0323163351
Category : Science
Languages : en
Pages : 713
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Book Description
Solid Propellant Rocket Research
Author: M. Summerfield
Publisher:
ISBN:
Category :
Languages : en
Pages : 15
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Book Description
The annual report highlights the progress being made on several concurrent solid propellant combustion mechanism researches. Studies of nitrocellulose-base propellants have produced a broad range of experimental results for platonized and unplatonized propellants. The corresponding mathematical models consider the flame zone processes controlling temperature sensitivity, extinguishment limits, and burning rate. The analytical studies of ignition and burning of porous propellants are producing good agreement with data, new insights into the combustion processes, and establishing regimes where steady-state burning rates are achievable. The work of nonsteady burning has progressed to the point that rocket motor transients can be predicted and dynamic burning rates in a variable throat area, low L* motor can be measured; this work has progressed from the research phase to the development stage. Sub- micron pyrophoric aluminum is being investigated as a means of increasing propellant burning rate.
Author: Martin Summerfield
Publisher: Elsevier
ISBN: 0323163351
Category : Science
Languages : en
Pages : 713
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Book Description
Solid Propellant Rocket Research
Author: RICHARD B. COLE
Publisher:
ISBN:
Category :
Languages : en
Pages : 1
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Book Description
Author: Vigor Yang
Publisher: AIAA
ISBN: 9781600864377
Category : Ballistics, Interior
Languages : en
Pages : 1038
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Book Description
Author: L. H. Caveny
Publisher:
ISBN:
Category :
Languages : en
Pages : 35
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Book Description
The combustion processes of solid propellants and rocket chamber Flows are being analyzed in terms of more complete flame models and fluid dynamics models. The flame structure, surface processes, and liquid layer decomposition of a cyclic nitramine (e.g., RDX) have been modeled. The model includes the partial decomposition of the nitramine molecule in the liquid phase, surface gasification, gas phase decomposition, and oxidation of formaldehyde. Several propellants (e.g., nitramine composite and nitrocellulose-based propellants) produce flame zones which extend well into the main chamber flow field. An analytical model is being developed that considers the effects of chemical reactions (i.e., extended flame zones) in the main chamber flow on the acoustic response of solid rocket motors. (Author).
Author: Richard B. Cole
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Leonard H. Caveny
Publisher:
ISBN:
Category :
Languages : en
Pages : 40
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Book Description
This research is directed at making direct measurements of the acoustic admittance of flames and interpreting those measurements in terms of flame models. Laser Doppler velocimetry (LDV) instrumentation, pressure detectors, and data analysis techniques were set up and used successfully to measure the acoustic response of a propane/air burner system. Applications of the techniques to solid propellants are described and are the subjects of the continuing research. (Author).
Author: Raymond Friedman
Publisher:
ISBN:
Category : Ammonia
Languages : en
Pages : 34
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Book Description
A program of research has been conducted on the mechanism of combustion of solid propellants, with emphasis on ammonia perchlorate-based systems.
Author: Vasily B. Novozhilov
Publisher: John Wiley & Sons
ISBN: 1119525640
Category : Technology & Engineering
Languages : en
Pages : 352
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Book Description
Despite significant developments and widespread theoretical and practical interest in the area of Solid-Propellant Nonsteady Combustion for the last fifty years, a comprehensive and authoritative text on the subject has not been available. Theory of Solid-Propellant Nonsteady Combustion fills this gap by summarizing theoretical approaches to the problem within the framework of the Zeldovich-Novozhilov (ZN-) theory. This book contains equations governing unsteady combustion and applies them systematically to a wide range of problems of practical interest. Theory conclusions are validated, as much as possible, against available experimental data. Theory of Solid-Propellant Nonsteady Combustion provides an accurate up-to-date account and perspectives on the subject and is also accompanied by a website hosting solutions to problems in the book.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
This report describes progress on a collaborative research program combining the expertise of individuals from several universities to develop a new ability to predict the propulsion performance of solid rocket motors. The focus of the research on nonsteady behavior is unique and the overall project is not possible at any one of the institutions participating in this coordinated research. The individual tasks which we are studying will pursue solid propellant decomposition under unsteady conditions, nonsteady aspects of gas phase flame structure measurements, numerical modeling of multidimensional flame structure, propellant/flame interactions and overall nonsteady propellant combustion characteristics in realistic rocket motor environments. Our goal has been to develop general models of fundamental mechanisms of combustion instability that can be applied to a variety of new energetic materials.
