Results 31 to 40 of about 301,896 (292)

An Experimental Investigation of Supersonic Combustion of Mildly Cracked N-Dodecane [PDF]

open access: yes, 2022
In this paper, a novel two-stage hydrocarbon fuel heating and delivery system was used to more accurately simulate the state of fuel in the cooling channel of the regenerative cooling engine. Mildly cracked (
Li, Yujun   +9 more
core   +2 more sources

Comprehensive Analyses on the Influential Factors in Supersonic Combustion Simulation Using Dynamic Adaptive Chemistry Method [PDF]

open access: yes, 2022
To overcome the major challenge of reactive flow simulation for chemical kinetics dominated flame dynamics in supersonic combustion, on-the-fly mechanism reduction for high fidelity simulation of scramjet becomes mandatory. For dynamic adaptive chemistry
Wu, Kun, Fan, Xuejun, Contino, Francesco
core   +3 more sources

Future directions of supersonic combustion research - Air Force/NASA workshop on supersonic combustion [PDF]

open access: yes35th Aerospace Sciences Meeting and Exhibit, 1997
The Air Force Office of Scientific Research, the Air Force Wright Laboratory Aero Propulsion and Power Directorate, and the NASA Langley Research Center held a joint supersonic combustion workshop on 14-16 May 1996. The intent of this meeting was to: (1) examine the current state-of-the-art in hydrocarbon and/or hydrogen fueled scramjet research; (2 ...
Julian Tishkoff   +7 more
openaire   +1 more source

Computational investigation to interpret the reacting flow conditions for two different fuels in the scramjet combustor

open access: yesResults 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
doaj   +1 more source

Characterization of supersonic turbulent combustion in a Mach-10 scramjet combustor [PDF]

open access: yes, 2020
Turbulent combustion remains an unsolved problem, and the simulation models that have been developed, although accurate for subsonic turbulent combustion, have limited accuracy when applied to supersonic combustion.
Wheatley, Vincent   +5 more
core   +2 more sources

Supersonic Combustion of Hydrogen in Mach 2 Flows Over an Axisymmetric Model [PDF]

open access: yes, 2018
An external axisymmetric model featuring a cavity flame-holder fuelled by hydrogen was adopted for the study of the supersonic combustion in Mach 2 flows.
Mengmeng Zhao   +5 more
core   +1 more source

On the application of tabulated dynamic adaptive chemistry in ethylene-fueled supersonic combustion [PDF]

open access: yes, 2018
The demands for extending the limiting operation conditions and enhancing the combustion efficiency of scramjets raise new challenges to the research of reliable robust and controllable flame stabilization in supersonic flows. In the present study, Large
Contino F, 吴坤, 姚卫, 范学军
core   +3 more sources

A dynamic combustion model for supersonic turbulent combustion

open access: yes, 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
openaire   +2 more sources

Reacting Flow Characteristics of Wall-mounted Ramps in Strut-injection Scramjet Combustors under Varying Hydrogen Jet Pressures [PDF]

open access: yesJournal of Applied Fluid Mechanics
Implications 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
doaj   +1 more source

ON THE POSSIBILITY OF BURNING ACCELERATION IN THE COMBUSTION CHAMBERS OF ADVANCED JET ENGINES BY DEEPLY SUBCRITICAL MICROWAVE DISCHARGE [PDF]

open access: yesНаучно-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
doaj   +1 more source

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