Results 141 to 150 of about 440 (201)
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Peregrine Hybrid Rocket Motor Development
50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, 2014To further develop and demonstrate the applicability of liquefying-fuel hybrid rocket technology to low-cost launch applications, a small team of engineers is developing a medium-scale liquefying-fuel hybrid sounding rocket using storable propellants (paraffin wax and N2O) that will propel a 5 kg payload to the edge of space.
Greg Zilliac +4 more
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Advanced hybrid rocket motor experiments
Acta Astronautica, 1987Abstract Results of experiments performed with an advanced, automated measuring system and dealing with combusion of polymethylmethacrylate and polyethylene with oxygen and different mixtures of oxygen and nitrogen are reported. Factors affecting the regression rate of the fuel are the mass flux, the geometry, the pressure level and the presence of ...
P.A.O.G. Korting +2 more
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Testing and CFD Simulation of Diaphragm Hybrid Rocket Motors
47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2011Combustion efficiency in standard hybrid rocket motors is usually low. This is due to the poor mixing of the core oxidizer flow with the gasi fied fuel from the walls. Motor scale increase usually worsens this issue. Large and volu metric inefficient post combustion chambers are common devices used to improve efficiency, while mixers are somewhat more ...
BETTELLA, ALBERTO +5 more
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Optimal Design of Hybrid Rocket Motors for Microgravity Platform
Journal of Propulsion and Power, 2008A nested direct/indirect method is used to find the optimal design for a microgravity platform which is based on a hybrid sounding rocket. The direct optimization of the parameters that affect the motor design is coupled with the indirect trajectory optimization to maximize a given mission performance index.
CASALINO, LORENZO +1 more
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Development of a Hybrid Rocket Motor Using a Diaphragm for a Small Test Rocket
44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2008For tactical missiles, hybrid rocket propulsion offers attractive advantages such as easy thrust control and compliance with insensitive munitions (IM) requirements. However, missile propulsion is highly constrained by volume and mass, and often requires a high thrust level and thrust per unit cross section.
Matthias Grosse, Gerhard Schlatzke
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An analytical and experimental study of a hybrid rocket motor
Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 2014The hybrid rocket motor is a kind of chemical propulsion system that has been recently given serious attention by various industries and research centers. The relative simplicity, safety and low cost of this motor, in comparison with other chemical propulsion motors, are the most important reasons for such interest.
Hadi Rezaei, Mohammad Reza Soltani
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Size scale-up in hybrid rocket motors
34th Aerospace Sciences Meeting and Exhibit, 1996Computational fluid dynamic analyses of the Navier-Stokes equations coupled with solid-phase pyrolysis, gas-phase combustion, turbulence and radiation are performed to study hybrid rocket combustor flowfields. The computational study is closely coordinated with a companion experimental program using a planar slab burner configuration with HTPB as fuel ...
S. Venkateswaran, C. Merkle
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Design and optimization of variable thrust hybrid rocket motors for sounding rockets
Science China Technological Sciences, 2011Besides safety and low-cost, the start/shutdown/restarting and throttling ability are the other two significant advantages of hybrid rocket motors (HRMs) compared with liquid and solid ones. In this study, a two-stage variable thrust and non-toxic 98%HP/HTPB hybrid rocket motor (VTHRM) is designed and applied in a sounding rocket, and the design ...
DaLin Rao +3 more
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Instrumentation of UALR labscale hybrid rocket motor
SPIE Proceedings, 2006The Central Arkansas Combustion Group has used a NASA EPSCoR grant to improve the instrumentation and control of its labscale hybrid rocket facility. The research group investigates fundamental aspects of combustion in hybrid rocket motors. This paper describes the new instrumentation, provides examples of measurements taken, and describes novel ...
Andrew B. Wright +3 more
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Development of a N2O/HTPB hybrid rocket motor
33rd Joint Propulsion Conference and Exhibit, 1997Experiments were performed as a part of the Hybrid Propulsion Demonstration Program (HPDP) in order to demonstrate a N2O/HTPB hybrid sounding rocket. Multiple hybrid motors have been tested at Environmental Aeroscience Corporation in order to develop a high performance hybrid flight system.
J. Arves +11 more
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