Results 21 to 30 of about 412,817 (220)

Agglomerate Size Evolution in Solid Propellant Combustion under High Pressure

open access: yesAerospace, 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
doaj   +1 more source

Interaction of LOX/GH2-Spray Combustion with Acoustics [PDF]

open access: yes, 2007
The response of a cryogenic LOX/H2-spray flame to acoustic pressure and velocity fluctuations has be investigated experimentally for pressure levels up to p=1MPa.
Bernhard Knapp   +5 more
core   +1 more source

Sublimation of ice particles from rocket exhausts in the upper atmosphere [PDF]

open access: yes, 2003
The process of sublimation of ice particles from a rocket exhaust in the upper atmosphere is examined. Heating by solar radiation and losses of energy by means thermal radiation and sublimation are taken into account in the thermal balance of the ice ...
Kosch, Mike J., Platov, Y. V.
core   +4 more sources

Rocket Motor with Composite Casing [PDF]

open access: yesProblemy 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
doaj   +1 more source

Combustion Chamber Acoustics and its Interaction with LOX/H2- and LOX/CH4-Spray Flames [PDF]

open access: yes, 2008
The acoustics of combustion chambers and the interaction of acoustics and combustion is investigated in a model combustor operated with LOX/H2 and LOX/CH4.
Marpert, Marl   +5 more
core   +1 more source

A Study on Dynamic Characteristics of Thin-Walled Cylindrical Cavities with a Large Aspect Ratio

open access: yesAerospace, 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
doaj   +1 more source

Review on the regression rate-improvement techniques and mechanical performance of hybrid rocket fuels

open access: yesFirePhysChem, 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
doaj   +1 more source

Large-Eddy Simulation of combustion instabilities in a variable-length combustor. [PDF]

open access: yes, 2013
This article presents a simulation of a model rocket combustor with continuously variable acoustic properties thanks to a variable-length injector tube. Fully compressible Large-Eddy Simulations are conducted using the AVBP code.
Garby, Romain   +5 more
core   +1 more source

Laser induced fluorescence thermometry with OH (2, 0) band excitation

open access: yesJournal of Fluid Science and Technology, 2016
Measurement technique that can be adapted to high temperature and pressure environment in the rocket combustion chamber has been limited to qualitative.
Teppei YANO   +3 more
doaj   +1 more source

Effects of Compounds in Liquefied Methane on Rocket Engine Operation

open access: yesAerospace, 2022
Methane (CH4) is a promising rocket fuel for various future space mission scenarios. It has advantages in terms of cost, performance, and environmental friendliness.
Jan van Schyndel   +4 more
doaj   +1 more source

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