Results 21 to 30 of about 21,342 (292)
Longitudinal DC Discharge in a Supersonic Flow: Numerical Simulation and Experiment
Energies, 2022 This work focuses on detailed descriptions of DC discharge properties in supersonic airflow and its applicability in combustion simulations. Due to the complexity of obtaining most of the data in the experiment, our experimental research was supplemented
Alexander Firsov +5 more
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Deduction of temperature fluctuations in transient compression wind tunnels using incompressible turbulent flow data [PDF]
, 2009 Wind tunnels and other aero-thermal experimental facilities are likely to make a contribution to the optimisation of energy and propulsion systems for the foreseeable future.
Buttsworth, D. R., Widodo, A.
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Results in Engineering, 2022 The scramjet engines use the atmospheric oxygen to complete the combustion process, therefore, known as Air breathing engines. It does not bear any active parts and operates at supersonic speed, so it becomes essential that the variables such as fuel ...
Namrata Bordoloi +3 more
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A dynamic combustion model for supersonic turbulent combustion
, 2023 Supersonic combustion plays a vital role in various applications, including scramjets, dual-mode ramjets, and pulse detonation engines. However, the flame characteristics can vary significantly, depending on the application. To model supersonic combustion, large eddy simulation coupled with a partially stirred reactor (PaSR) is commonly used.
Zhu, Xu +4 more
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ON THE POSSIBILITY OF BURNING ACCELERATION IN THE COMBUSTION CHAMBERS OF ADVANCED JET ENGINES BY DEEPLY SUBCRITICAL MICROWAVE DISCHARGE [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2016 The paper deals with the problem of increasing the speed of propagation of the flame front as applied to the problems of reducing noxious emissions of nitrogen oxides formed during operation of jet engines and industrial turbines, as well as the ...
P. V. Bulat +3 more
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Stagnation Hugoniot Analysis for Steady Combustion Waves in Propulsion Systems [PDF]
, 2006 The combustion mode in a steady-flow propulsion system has a strong influence on the overall efficiency of the system. To evaluate the relative merits of different modes, we propose that it is most appropriate to keep the upstream stagnation state fixed ...
Shepherd, J. E., Wintenberger, E.
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Reacting Flow Characteristics of Wall-mounted Ramps in Strut-injection Scramjet Combustors under Varying Hydrogen Jet Pressures [PDF]
Journal of Applied Fluid MechanicsImplications of hydrogen pressure injection variances from strut injectors in a supersonic reacting flow domain have been a focus of this study. A numerical investigation is performed using Reynolds Averaged Navier Stokes (RANS) equations in combination ...
A. Antony Athithan, S. Jeyakumar
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Aerospace, 2023 This paper presents the results of testing and optimization of a plasma-assisted combustion scheme based on a pylon for fuel injection equipped with a plasma actuator.
Aleksandr A. Firsov
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Ignition Characteristics of Supersonic Combustion
IOP Conference Series: Materials Science and Engineering, 2020 Abstract Detonation may be initiated by two different modes, direct initiation or deflagration-to- detonation transition (DDT). Direct initiation can occur by a strong source such as using exploding wire or high-voltage discharge jets. Nevertheless, this method required a significant amount of energy in order to ensure that the generated
Shehab Elhawary +3 more
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Supersonic mixing and combustion: advance in les modeling [PDF]
Progress in Propulsion Physics, 2009 Mixing and combustion in supersonic reacting flows are currently under investigation for new generation launchers and trans-atmospheric vehicles. Experimental results with hydrogen injected at Mach 2.5 in a Mach 2 airstreams showed combustion taking place just in ∼0.6 m: this indicates that supersonic combustion is feasible within short combustors ...
INGENITO, ANTONELLA, BRUNO, Claudio
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