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Combustion and Ignition Characteristics of Zr in Solid Fuel of Ducted Rockets [PDF]

40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, 2004
The rockets in the air flights are inefficient propulsion in specific fuel consumption (SFC), because they don't use oxygen in the air. In order to improve the SFC of rockets, ducted rockets are produced. Since ducted rockets obtain high performance in supersonic flight, the airflow in the secondary combustor becomes very fast and the residence time of
Takuo Kuwahara, Takeshi Suzuki, Kengo Kunitou, Mitsuaki Tanabe, Takaki Odawara   +4 more
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Cinefluorography of Solid Fuel Rocket Motors

1963
A cinefluorographic system developed for the study of internal burning of rocket motors during static tests is described.This system uses a 9-in. image intensifier tube with a light intensification of approximately 2000 coupled to a 35-mm movie camera. A 250-kvp, 5-ma X-ray machine is used to penetrate a 5-in.
E. Criscuolo, D. Polansky
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Combined ducted rocket and solid fuel ramjet cycle

33rd Joint Propulsion Conference and Exhibit, 1997
This paper evaluates the combination of a ducted rocket with a solid fuel ramjet to enhance the acceleration capabilities of the solid fuel ramjet cycle. Trade studies were conducted on both an air launched high speed cruise missile and a low altitude ground launched missile.
C. Limage, C. Limage
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Performance Prediction of a Ducted Rocket Combustor Using a Simulated Solid Fuel

Journal of Propulsion and Power, 2004
The ducted rocket is a supersonic flight propulsion system that takes the exhaust from a solid fuel gas generator, mixes it with air, and burns it to produce thrust. To develop such systems, the use of numerical models based on computational fluid dynamics (CFD) has been increasing, but to date only simplified treatments of the combustion within ducted
Stowe, R.A., Dubois, C., Harris, P.G., Mayer, A.E.H.J., Dechamplain, A., Ringuette, S.   +5 more
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Performance Analysis of a Dual-Fuel Sugar Based Solid Rocket Propellant

European Journal of Engineering and Technology Research, 2021
The effects of dual-fuel on improving the ballistic efficiency of a low energy sugar-based solid rocket propellant were investigated in this paper. This was achieved by establishing a threshold proportion of sucrose to sorbitol that provided the highest ...
G. Adeniyi, Inkechukwu Nkere, Lanre Adetoro, O. Sholiyi   +3 more
semanticscholar   +1 more source

Solid-Fuel Rocket Motor Efficiency Improvement Scheme

2014
Aluminum-based propellants are commonly used in solid rocket motors (SRM) due to their high energy densities. However, the alumina (Al2O3) particles produced during aluminum propellant combustion present performance issues. These particles flow along the combustion chamber to the nozzle in liquid form causing chemical and mechanical erosive damage ...
Michael Hamman, Yi-Hsin Yen, Ryoichi S. Amano   +2 more
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Quantification of transformation products of rocket fuel unsymmetrical dimethylhydrazine in air using solid-phase microextraction: CompoundR2 Slope (a.u.)Spike recovery (%)LOD (μg/m3 )LOQ (μg/m3 )DMAAN0.990656±32111±70.190.6MPA0.9961809±56109±100.120.4NDMA0.994783±29109±90.150.5DMF0.9962055±60130±50

Journal of Separation Science, 2021
Quantification of unsymmetrical dimethylhydrazine transformation products in ambient air is important for assessing environmental impact of heavy rockets' launches.
Bauyrzhan Bukenov, Nassiba Baimatova, B. Kenessov   +2 more
semanticscholar   +1 more source

Experimental Investigation of Liquid Phase Breakup in Solid Fuel Rockets

Volume 1A, Symposia: Advances in Fluids Engineering Education; Turbomachinery Flow Predictions and Optimization; Applications in CFD; Bio-Inspired Fluid Mechanics; Droplet-Surface Interactions; CFD Verification and Validation; Development and Applications of Immersed Boundary Methods; DNS, LES, and Hybrid RANS/LES Methods, 2014
Solid rocket motors (SRM)s commonly use aluminized composite propellants. The combustion of aluminum composite propellants in SRM chambers lead to high temperature and pressure conditions resulting in the liquid alumina as a combustion product. The presence of liquid alumina in the flow presents problems such as; chemical erosion of propellant, and ...
Joshua Stangel, Kristopher Rockey, Michael Hamman, Ryo S. Amano, Yi-Hsin Yen   +4 more
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Mass Emissivity of Powder Gases in Solid Fuel Rockets

Journal of Applied Physics, 1948
An analysis has been carried out to determine an upper limit for the effective mass emissivity of the radiating gases in a solid fuel rocket motor. The calculations depend upon a comparison between experimentally observed performance data relating to a rocket motor and theoretical results based on a theory for the effect of radiation on the performance
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Finite acoustic oscillations and erosive burning in solid fuel rockets.

AIAA Journal, 1965
The acoustic combustion instability of a solid fuel rocket depends vitally on the response of the burning propellant surface to a sound field. The erosive part of this response can be significantly nonlinear at sound amplitudes too low in typical motors for ordinary second-order acoustic nonlinearities to be important. Then moderate amplitude phenomena
F. T. McClure, J. F. Bird, R. W. Hart
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