Results 171 to 180 of about 838 (233)

Design of liquid-propellant rocket engines

Journal of Machinery Manufacture and Reliability, 2012
A design method for liquid-propellant rocket engines is proposed, on the basis of models adjusted in response to test results. This method increases the reliability of the results and reduces ground testing of the motors. The effectiveness of the method is confirmed by ground testing and flight experience with the motors developed by Salyut Design ...
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On porous liquid propellant rocket engine injectors

Aerospace Science and Technology, 2008
A novel injection concept for cryogenic liquid propellant rocket engines has been tested and verified successfully using an optically accessible combustion chamber. The injector consists of a porous faceplate made from sinter metal and five LOX posts arranged in a classical parallel showerhead configuration.
Lux, Johannes, Suslov, Dmitry, Haidn, Oskar   +2 more
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Liquid-Propellant Rocket Engine Health-Monitoring Techniques

Journal of Propulsion and Power, 1998
Health monitoring of liquid-propellant rocket engines (LRE) is one of the key technologies for improving the safety of existing engines and developing reliable next-generation engines. Extensive research has been done on the health monitoring of the Space Shuttle Main Engine and next-generation reusable LRE.
Yulin Zhang, Jianjun Wu, Minchao Huang, Hengwei Zhu, Qizhi Chen   +4 more
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Liquid-Propellant Rocket Engines

2012
The liquid-propellant rocket engine has the characteristics that allow it to deliver thrust at a high-performance level, with an efficiency and operational flexibility that enables a number of mission applications to go forward. Monopropellant and bipropellant versions of this category of engine are discussed in some detail in this chapter.
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Thermostructural composite materials for liquid propellant rocket engines

23rd Joint Propulsion Conference, 1987
Since more than twenty years the possible utilisation of high temperature and oxydation resistance of ceramics was considered by rocket engines designers but brittleness and poor thermal choc resistance was a major disadvantage for those materials emergence.
A. MELCHIOR, M. POULIQUEN, E. SOLER
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Liquid propellant rocket engines - Their status and future.

Journal of Spacecraft and Rockets, 1967
Performance, weight, design, flexibility, engine cycles and reliability of liquid propellant rocket engines used in NASA and USAF ...
R. V. BURRY, S. F. IACOBELLIS, V. R. LARSON   +2 more
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Fundamental Concepts on Liquid-Propellant Rocket Engines

2020
The engine of a rocket vehicle is a machine which produces thrust by accelerating a gas flowing through the machine. The reaction to this acceleration is the force which drives the vehicle. The amount of thrust generated depends on the mass flow rate of the gas moving through the engine and on the exit velocity of the gas from the nozzle. The gas flow,
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Analysis of liquid rocket propellant engine exhaust plumes

5th Thermophysics Conference, 1970
Liquid rocket propellant engine exhaust plume flow field, discussing mathematical models for combustion chamber, throat region and ...
T. GREENWOOD, R. PROZAN, A. RATLIFF, D. SEYMOUR   +3 more
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FLAME-PILOTING MECHANISMS IN LIQUID PROPELLANT ROCKET ENGINES

1966
Abstract : A program was directed toward the systematic investigation of flame- piloting mechanisms in liquid rocket engines and their role in combustion instability. The mechanism which gained the most attention was recirculation. The program included experimental analysis of rocket engine performance as affected by external disturbances, minor ...
E. Karl Bastress, Aubrey C. Tobey
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Thrust Throttling of Large Liquid Propellant Rocket Engines

The Journal of the Royal Aeronautical Society, 1964
SummaryThe paper concerns rocket engines of the type currently employed in ballistic missiles and satellite booster vehicles, outlining some advantages to be gained from a reduction in thrust towards the end of the burning period. Several methods of throttling a rocket engine are then examined.Low frequency combustion instability which can arise when ...
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