Results 211 to 220 of about 24,612 (245)
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Liquid Propellant Rocket Development
Journal of the American Rocket Society, 1946Liquid Propellant Rocket Development" By M. W. NESBITT Chief Engineer, Reaction The subject of liquid propellant rocket development is one which has become greatly broadened in the past three years. In order to cover each phase of liquid rocket development in detail it would be necessary to spend considerably more time than is presently available ...
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Chemically Tunable Nanoscale Propellers of Liquids
Physical Review Letters, 2007We explore the limits of liquid pumping by "classical propellers" with molecular-scale blades. Our molecular dynamics simulations reveal a huge sensitivity of pumping to the chemistry of the blade-liquid interface. We demonstrate selective pumping of hydrophobic and hydrophilic liquids, where the pumping rate is determined by the effective profile of ...
Boyang, Wang, Petr, Král
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Propellant Injector Influence on Liquid-Propellant Rocket Engine Instability
Journal of Propulsion and Power, 2015The avoidance of acoustic instabilities, which may cause catastrophic failure, is demanded for liquid-propellant rocket engines. This occurs when the energy released by combustion amplifies acoustic disturbances; it is therefore essential to avoid such positive feedback.
Pavel P. Popov +2 more
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NITROGEN, LIQUID, PROPELLANT GRADE
2017This specification has been 'CANCELLED' by the Aerospace Materials Division, SAE, as of September 1996.
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Liquid Propellant Positioning and Control in Example Propellant Tank
2021Two topics relating to low gravity fluid behavior in satellite propellant tanks are considered. In the first, static case, the problem of liquid trapping is examined. Satellite propellant tank end caps optimized for weight are generally shallower and more oblate than hemispherical end caps of the same radius.
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Liquid-Propellant Rocket Engines
2012The 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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Laser ignition of liquid propellants
Symposium (International) on Combustion, 1991Following previous studies of electrical ignition of liquid propellants in plasma jets, initiation by focused laser beams is studied both by fast cine shadowgraphy and by recording permanent gas release as a measure of decomposition. Unlike military propellants, droplets of aqueous mixtures of nitrate salts of hydroxylamine with a 4-carbon aliphatic ...
F.B. Carleton +3 more
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Plasma Ignition of Liquid Propellant
Combustion Science and Technology, 1987Abstract The ignition of a liquid gun propellant that is an aqueous mixture of hydroxylammonium nitrate (HAN) and triethanolammonium nitrate (TEAN), was studied using a plasma-torch igniter. The torch proved to be an excellent device for achieving safe and reproducible ignition, and combustion phenomena in a laboratory setting.
R. J. Catiolica, N. Klein
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INVESTIGATION OF LIQUID ROCKET PROPELLANTS
1952Abstract : N sub2 H sub4 derivatives: The f.p. of N sub2 H sub3 Me (I) wa s calculated as -56.08 deg. C; the eutectic for the system I-N sub2 H sub4 occured at 85 wt.-% I and -64 deg. C. Neutralizing I.H sub2 SO sub4 with KOH yielded 95. 6% I. The formation of trimethylazonium bromide in the reaction of N sub2 H sub4 and MeBr was not prevented by using
E. M. Wilson +6 more
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Oxygen, Liquid, Propellant Grade
2017This specification has been declared "CANCELLED" by the Aerospace Materials Division, SAE as of January 1990.
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