Results 251 to 260 of about 40,392 (313)

Hybrid rocket instability

29th Joint Propulsion Conference and Exhibit, 1993
The paper provides a brief review of theoretical and experimental studies concerned with hybrid rocket instability. The instabilities discussed include atomization and mixing instabilities, chuffing instabilities, pressure coupled combustion instabilities, and vortex shedding.
B. GREINER, R. FREDERICK, JR.
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The regolith rocket—A hybrid rocket using lunar resources

Acta Astronautica, 2021
Abstract The use of lunar hybrid rockets, that connect the Moon surface with a lunar gateway and provide it with resources, are evaluated. Therefore, the composition of lunar regolith and its use for specific rocket subsystems is assessed. In particular, this work evaluates the use of oxygen and aluminum from regolith as oxidant/fuel mixture as well ...
Stoll, Enrico, Härke, Philip, Linke, Stefan, Heeg, Francesca, May, Stefan   +4 more
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Hybrid rocket combustion study

29th Joint Propulsion Conference and Exhibit, 1993
The objectives of this study of 'pure' or 'classic' hybrids are to (1) extend our understanding of the boundary layer combustion process and the critical engineering parameters that define this process, (2) develop an up-to-date hybrid fuel combustion model, and (3) apply the model to correlate the regression rate and scaling properties of potential ...
L. STRAND, R. RAY, N. COHEN
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Hybrid rocket motor fuel studies

33rd Joint Propulsion Conference and Exhibit, 1997
Results from four fuel characterization studies are reported. The first study was a premix (complete fuel except for curative) hold time determination which concluded that a full-scale 600-gal premix could be held for at least 3 weeks without any harmful degradation of the cured final fuel.
H. Weyland, H. Weyland
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Transient behavior in hybrid rockets

33rd Joint Propulsion Conference and Exhibit, 1997
The combustion dynamics in hybrid rockets is studied to provide a basic input into transient motor processes, such as ignition, throttling, thrust termination and instability. The model treats the time dependent heat flow into the fuel, with ablation at the surface. The gasification uses a single effective heat to account for surface processes, such as
M. Karabeyoglu, D. Altman, M. Karabeyoglu, D. Altman   +3 more
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Hybrid Rocket Engines

2012
The hybrid rocket engine utilizes a combination of solid rocket and liquid rocket technology to meet some flight mission applications. In terms of performance, cost, availability of materials and safety, the hybrid approach does potentially have some advantages.
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Hybrid rocket engine

Herald of Aeroenginebuilding, 2019
Предлагается новый гибридный (комбинированный) ракетный двигатель, на который получен патент Украины («Спосіб комбінування реактивного і прямоточного повітряно-реактивного двигунів». 25.08.2015 ¹100987). Обсуждаются некоторые аспекты его конструкции и работы в сравнении с аналогами.
Semenov, К, Kopiyka, A
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Hybrid Sounding Rocket HEROS: TRL 9

2017
The inherent safety of hybrid rocket propulsion offers some unique advantages compared to solid and liquid propellant rocket engines. This makes it especially attractive for space tourism, Micro-launcher and hands-on experiments in the education of students. On November 8th , 2016 at 10:30 a.m.
Kobald, Mario, Fischer, U., Tomilin, K., Schmierer, C., Petrarolo, Anna   +4 more
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Analysis of hybrid rocket combustion

Acta Astronautica, 1980
Abstract The problem involving flow of a turbulent boundary layer with mass injection and combustion is studied to investigate the hydrid rocket combustion. Because of the presence of combustion, the momentum equation is coupled to the energy and species equations.
Cherng, D. L., Tao, C. C.
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