Results 31 to 40 of about 14,848 (204)
A mechanism for high-frequency oscillation in ramjet combustors and afterburners [PDF]
, 1956 An experimental investigation was made of the behavior of a small two-dimensional combustion chamber, burning a uniform mixture of air and fuel vapor under conditions of high-frequency oscillation or screech.
Marble, Frank E., Rogers, Don E.
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Combustion of turbulent lean mixtures by plasma jet ignition.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1989 In order to confirm quantitatively the performance and characteristics of the plasma jet ignition in turbulent lean mixtures, combustion tests were carried out with varying the governing parameters of the plasma jet ignition. three plasma cavity sizes of 37, 75, and 170 mm3, three orifice diameters of 1, 2, 5 and 4 mm, and three discharge energies of 0.
Eiichi MURASE +3 more
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Large eddy simulation of spark ignition in a turbulent methane jet [PDF]
Combustion and Flame, 2009 Large eddy simulation (LES) is used to compute the spark ignition in a turbulent methane jet flowing into air. Full ignition sequences are calculated for a series of ignition locations using a one-step chemical scheme for methane combustion coupled with the thickened flame model.
Lacaze, G, Richardson, E.S., Poinsot, T
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Combustion modelling of turbulent jet ignition in a divided combustion chamber
International Journal of Engine Research, 2021 Turbulent jet ignition is seen as one of the most promising strategies to achieve stable lean-burn operation in modern spark-ignition engines thanks to its ability to promote rapid combustion. A nearly stoichiometric mixture is ignited in a small-volume pre-chamber, following which multiple hot turbulent jets are discharged in the main chamber to ...
Olcuire M. +5 more
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An improved thermal jet for the propellant launching system
Case Studies in Thermal Engineering, 2023 This work is focused to study the energy release and flow behavior of liquid propellant during internal ballistics cycle of liquid launching system on the base of the thermal gas jet.
Xiaochun Xue, Yonggang Yu
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, 2018 This numerical study investigates the combustion modes in the second stage of a sequential combustor at atmospheric and high pressure. The sequential burner (SB) features a mixing section with fuel injection into a hot vitiated crossflow.
Noiray, Nicolas, Schulz, Oliver
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EnergiesAs a carbon-free fuel, ammonia faces challenges in engine applications due to its low flame propagation speed and high ignition energy. The pre-chamber turbulent jet-post spark ignition strategy (TJ-PSI) has been proven effective in accelerating the ...
Yichen Gao +7 more
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Chemical Engineering Transactions, 2018 The main objective of this study is the evaluation of the numerical capacity of the RANS-EPDF hybrid method, by comparing different turbulence models, with numerical simulations in a turbulent jet flame (hydrogen / air), using the method of Eulerian ...
Rouan Serik Habib +3 more
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, 2014 The present paper deals with the numerical study of high pressure LOx/H2 or LOx/hydrocarbon combustion for propulsion systems. The present research effort is driven by the continued interest in achieving low cost, reliable access to space and more ...
Coclite A. +9 more
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Numerical analysis of conservative unstructured discretisations for low Mach flows [PDF]
, 2016 This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. https://authorservices.wiley.com/author-resources/Journal-Authors/licensing-and-open-access/open-access/self-archiving.htmlUnstructured
Chiva Segura, Jorge +5 more
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