Results 221 to 230 of about 13,320 (264)
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Design, Manufacturing and Test of a Plug Nozzle Rocket Engine
38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2002The paper presents the design, manufacture and test of a small 1000 lbf ablative annular plug nozzle rocket engine. The engine was developed by students with the help from faculty and industry professionals as part of the California Launch Vehicle Education Initiative (CALVEIN).
John Garvey +3 more
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Numerical Determination of Nozzle Admittances in Rocket Engines
2010A numericalmethod in the time domain is introduced to assess the stability with respect to the nozzle’s geometry in liquid rocket engines. A boundary condition for the injector plane in a combustion chamber is presented, where the mass flow fluctuations are set to zero. Thus the acoustic flux over the injector plane is zero even when there is mean flow
Thomas Sattelmayer +2 more
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Advanced Computational Flow Analysis - Rocket Engine Nozzle
Asian Journal of Research in Social Sciences and Humanities, 2016Analysed a rocket engine nozzle to understand the phenomena of various design conditions under the different convergent angle, divergent angle and throat radius by Computational Fluid Dynamics (CFD). Convergence problems regarding rocket nozzle is analysed in different angles.
Sandeep Kumar, M. Arularasu
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Hybrid Double-Divergent Nozzle as a Novel Alternative for Future Rocket Engines
Journal of Spacecraft and Rockets, 2022The efficiency of a rocket engine is dependent on altitude adaptability of its nozzle. In this context, double-divergent nozzles (DDNs) have drawn immense interest.
Kaustubh Acharyya +3 more
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Review and Implementation of Engineering Models of Rocket Film Cooling and Nozzle Erosion
2022Introduction The capability of performing reliable system-level multi-physics analyses is an important and not-so- common asset to have, during the design process of new space systems. For this purpose, the development of reliable engineering or low-order models is of great importance to simulate complex systems steady-state and transient analyses.
Simone D’Alessandro +4 more
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Research of material for uncooled nozzle extensions of liquid rocket engines
Acta Astronautica, 2009Abstract One of the ways to increase the performance of liquid rocket engines (LRE) is to use nozzle extensions (NE) made of carbon–carbon composites (CCC). The following works were performed during development of the NE: a fabrication method was verified, physicomechanical properties of the material were defined, effects of high temperature on a CCC
Yuriy Shtefan +2 more
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Thermal Analysis of Nozzle Cooling for Liquid Rocket Engines
54th International Astronautical Congress of the International Astronautical Federation, the International Academy of Astronautics, and the International Institute of Space Law, 2003cp =heat capacity Abstract For the thermal protection against high temperature gas stream in thrust chamber and nozzle for liquid rocket engines, film cooling is employed inside the nozzle structure in addition to regenerative cooling by liquid fuel, for example.
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Technology advancements for channel wall nozzle manufacturing in liquid rocket engines
Acta Astronautica, 2020Abstract A regeneratively-cooled or dump-cooled nozzle is a critical component for expansion of hot gases to enable high temperature and performance in liquid rocket engines systems. Regeneratively-cooled channel wall nozzles are a design solution used across the propulsion industry as a simplified method to fabricate the nozzle structure with ...
Paul R. Gradl, Christopher S. Protz
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Investigation of Nozzle Performance for Rotating Detonation Rocket Engines
2019Progress in conventional rocket engine technologies, based on constant pressure combustion, has plateaued in the past few decades. Rotating detonation engines (RDEs) are of particular interest to the rocket propulsion community as pressure gain combustion may provide improvements to specific impulse relevant to booster applications.
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Computational Fluid Dynamics Model of Various Types of Rocket Engine Nozzles
International Review on Modelling and Simulations (IREMOS), 2020The nozzle is an element of the rocket engine in which the potential energy of gases generated during combustion is converted into the kinetic energy of the gas flow. The design parameters of the nozzle have a decisive influence on the ballistic characteristics of the engine.
Paweł Karpiński +2 more
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