Results 11 to 20 of about 1,551 (188)
COMBUSTION PROCESSES IN HYBRID ROCKETS
International Journal of Energetic Materials and Chemical Propulsion, 2019 This paper presents the latest results achieved at the Space Propulsion Laboratory of Politecnico di Milano in the area of hybrid propulsion. Focus is put on four specific research topics currently under investigation and strongly linked: (1) solid fuel formulations development; (2) investigation of the burning behavior of liquefying fuel formulations ...
Paravan, Christian +3 more
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Aerospace, 2023 Solid rocket motors are prone to combustion instabilities, which may lead to various problems for the rockets, from unexpected oscillations, precision decreasing, to explosion.
Zhuopu Wang, Wenchao Zhang, Yuanzhe Liu
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Regarding the perturbed operating process of DB propellant rocket motor at extreme initial grain temperatures [PDF]
INCAS Bulletin, 2012 Despite many decades of study, the combustion instability of several DB propellants is still of particular concern, especially at extreme grain temperature conditions of rocket motor operating.
Ioan ION, Titica VASILE, Doru SAFTA
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Solid-Fuel Regression Rate for Standard-Flow Hybrid Rocket Motors
Journal of Thermal Science and Technology, 2012 Marxman's diffusion-limited analysis of hybrid rocket combustion has been often used to investigate various combustion problems in hybrid rocket motors.
Takakazu MORITA +3 more
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Numerical Investigation on Hybrid Rocket Motors with Star-Segmented Rotation Grain
Aerospace, 2022 A novel fuel grain configuration comprising two star-segmented grains is proposed. The effect of the rotation, mid-chamber length, and segmented position on the fuel regression rate and the combustion efficiency in hybrid rocket motors with star ...
Hui Tian +5 more
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Ignition and Flame Stabilization of a Strut-Jet RBCC Combustor with Small Rocket Exhaust
The Scientific World Journal, 2014 A Rocket Based Combined Cycle combustor model is tested at a ground direct connected rig to investigate the flame holding characteristics with a small rocket exhaust using liquid kerosene.
Jichao Hu, Juntao Chang, Wen Bao
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Agglomerate Size Evolution in Solid Propellant Combustion under High Pressure
Aerospace, 2023 Solid propellant combustion and flow are significantly affected by condensed combustion products (CCPs) in solid rocket motors. A new aluminum agglomeration model is established using the discrete element method, considering the burning rate and ...
Songchen Yue +7 more
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Rocket Motor with Composite Casing [PDF]
Problemy Mechatroniki, 2015 The article presents the results of work concerning a two-stage rocket motor. In the first step tested stationary the charge rocket motor with the ignitor and the nozzle system in the ballistic chamber was tested.
Zbigniew Drabik, Tomasz Rasztabiga
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A Study on Dynamic Characteristics of Thin-Walled Cylindrical Cavities with a Large Aspect Ratio
Aerospace, 2022 The unstable combustion problem in small-sized solid rocket engines with a large aspect ratio is so complicated that its causes remain unclear. In this study, the coupled vibration between the sound field and shell in the engines was proposed as a ...
Fangfang Xu, Hong Li, Dongxu Zhang
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FirePhysChem, 2021 Human spaceflight, space tourism, and the launch of microsatellites are all expected to grow in the future. In fact, with the recent increase of the satellite market, almost 1000 smallsats per year are foreseen to be launched over the next decade. Hybrid
Yash Pal +4 more
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