Results 251 to 260 of about 10,802 (309)
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Combustion mechanisms of composite solid propellants
Symposium (International) on Combustion, 1977By means of theoretical modeling as well as by the experimental investigation of various propellants, further elements are presented to consolidate the understanding of the combustion of ammonium perchlorate propellants. Available descriptions of A.P. combustion, binder pyrolysis and composite propellant combustion are presented and compared favorably ...
Guy Lengellé +2 more
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Ignition delay of composite solid propellants
Combustion and Flame, 1977Abstract Ignition delay of phenol-formaldehyde composite propellants was measured by a hot plate technique. The activation energy for the preignition reactions has been computed using the Arrhenius type expression for ignition delay.
H.L. Girdhar, A.J. Arora
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Oscillatory burning of solid composite propellants
Symposium (International) on Combustion, 1963Analytical consideration of the interaction of an oscillatory pressure disturbance with the burning zone of a composite propellant leads to the conclusion that acoustic waves induce periodic variations in the ratio of the mass release rates of composite propellant components that give rise to harmonic composition and adiabatic flame temperature ...
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Nanomaterials as modifier for composite solid propellants
Nano-Structures & Nano-Objects, 2019Abstract Propellants are the major source of chemical energy in space vehicles and missiles. The AP (Ammonium perchlorate), AN (Ammonium nitrate), RDX (Hexahydro-1, 3, 5-trinitri-1, 3, 5-triazine) and HMX (Octahydro-1, 3, 5, 7-tetranitro-1, 3, 5, 7- tetrazocine), etc are currently the most widely used energetic materials in composite solid ...
Jalpa A. Vara +2 more
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Combustion of composite solid rocket propellants.
AIAA Journal, 1969CONSIDERABLE work has been done on solid rocket ^->< propellants using various fuels (often polymers) and oxidizers. Recently Rastogi and Ouseph have studied the combustion of phenol-f ormaldehy de/NH 4C10 4 system . They observed that the rate of burning decreases as the amount of cross-linking increases in the polymer.
R. P. RASTOGI, B. L. GUPTA
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Calorimetric values of composite solid propellants
Thermochimica Acta, 1982The calorimetric values of composite solid propellant based on polystyrene, polyphenolformaldehyde, poly(vinyl chloride) and carboxy-terminated polybutadiene were determined using combustion calorimetry in order to assess the uncertainities in their measurements.
Kishore, K +2 more
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8th Joint Propulsion Specialist Conference, 1972
Abstract : The experimental results at 100 bar initial pressure emphasize the importance of the condensed phase properties on the depressurization extinguishment. In all cases of alteration of these properties by the change of binder, the particle size distribution, or the addition of Aluminum the critical depressurization rate for extinguishment was ...
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Abstract : The experimental results at 100 bar initial pressure emphasize the importance of the condensed phase properties on the depressurization extinguishment. In all cases of alteration of these properties by the change of binder, the particle size distribution, or the addition of Aluminum the critical depressurization rate for extinguishment was ...
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Erosive burning of composite solid propellants
Combustion and Flame, 1966A model is proposed for erosive burning of ammonium perchlorate composite wolid propellants. It is assumed that combustion takes place in the turbulent boundary layer and that the turbulent flame consists of distorted ‘flamelets’ but otherwise retains on a molecular scale the characteristics of a laminar flame.
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The combustion of solid monopropellants and composite propellants
Symposium (International) on Combustion, 1971A model describing the combustion of composite propellants has been applied to three different types of composite propellants, and to two oxidizers which burn as monopropellants. The oxidizers studied are AP, HMX, and KP (ammonium perchlorate, cyclotetramethylenetetranitramine, and potassium perchlorate), each of which has unique combustion ...
M.W. Beckstead, R.L. Derr, C.F. Price
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Nitramine composite solid propellant modeling
26th Joint Propulsion Conference, 1990Abstract : This report summarizes work performed at the Naval Weapons Center to develop a theoretical model for the combustion of nitramine composite solid propellants.
F. BLOMSHIELD, J. OSBORN
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