Results 131 to 140 of about 1,551 (188)

Nonlinear longitudinal combustion instability in rocket motors

11th Aerospace Sciences Meeting, 1973
A new analytical technique for the solution of nonlinear longitudinal combustion instability problems in rocket combustors is developed. Using relatively little computation time, this technique is capable of predicting the transient and limit cycle behavior of the combustion instability oscillations as well as the disturbance amplitude required to ...
MANUEL E. LORES, BEN T. ZINN
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TURBULENT BOUNDARY LAYER COMBUSTION IN THE HYBRID ROCKET

Symposium (International) on Combustion, 1963
In this paper an effort has been made to survey recent theoretical and experimental work related to several aspects of the hybrid combustion process. It has been found that hybrid combustion is controlled by the rate at which heat can be delivered to the fuel surface, rather than by the surface reaction rates.
G. Marxman, M. Gilbert
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Combustion of metal agglomerates in a solid rocket core flow

Acta Astronautica, 2013
Abstract The need for access to space may require the use of solid propellants. High thrust and density are appealing features for different applications, spanning from boosting phase to other service applications (separation, de-orbiting, orbit insertion).
MAGGI, FILIPPO, DOSSI, STEFANO, DE LUCA, LUIGI   +2 more
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The Sampling of Rocket Combustion Gases

The Journal of the Royal Aeronautical Society, 1964
Summary:—In the past, attempts have been made to evaluate injectors for rocket engine combustion chambers by the use of water analogy rigs and model combustion systems that simulated the injection and combustion phase change occurring in the actual engine.
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Combustion termination of solid rocket motors

Journal of Spacecraft and Rockets, 1965
To explore the feasibility of terminating combustion without the hazardous flame and debris associated with venting, a series of sixteen 5-in.-diam motors was fired. Two techniques were investigated: 1) injection of liquid into the combustion chamber, and 2) explosive discharge of coolants from a canister located inside the chamber.
H. J. TABACK, E. E. DAY, T. P. BROWNE
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Towards Affordable LES of Rocket Combustion Engines

2018
Due to the large disparity of length and time scales in rocket combustors corresponding LES are highly time consuming. Steps towards simulating rocket combustion engines with affordable LES with the compressible, implicit combustion code TASCOM3D are presented.
Keller, Roman, Grader, Martin, Gerlinger, Peter, Aigner, Manfred   +3 more
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Fuel Chemistry And Combustion Distribution Effects On Rocket Engine Combustion Stability

2012
Abstract : The goal of the project was to understand how changes in the rate of energy addition can be used to alter the combustion instability characteristics of liquid rocket engines. Fuels with increased energy, either due to higher heats of formation or energetic additives, presumably result in higher performance. This study seeks to understand how
Steven S. Son, Stephen D. Heister, William E. Anderson   +2 more
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L*-Combustion Instability in Solid Propellant Rocket Combustion

1985
An analysis of the L*-combustion instability in solid propellant rockets is formulated to include (1) secondary or residual combustion in the rocket chamber and (2) the change of the mean chamber pressure. The aim was to explore if these factors might remedy the failure of the many transient heat-transfer theories with quasi-steady gaseous-phase ...
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Combustion Instability in Solid Propellant Rockets.

1987
Abstract : This report constitutes the principal of a book on combustion stability in solid propellant rockets. The present report contains nine chapters that are each substantially complete except for some editorial, bibliographical and art work in some chapters.
G. A. Flandro, E. W. Price
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Comprehensive analysis of liquid rocket combustion

6th Propulsion Joint Specialist Conference, 1970
Abstract : A comprehensive method for analyzing liquid rocket engine combustion is introduced, which utilizes and unifies the results of analytical and experimental research in the fields of liquid propellant injection and combustion. A system of 3-dimensional, time-dependent, nonlinear conservation equations is derived and the necessary expressions ...
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