Hydrocarbon-fueled Scramjet Combustor Investigation
Author : I. W. Kay
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Page : pages
File Size : 28,69 MB
Release : 1990
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Author : I. W. Kay
Publisher :
Page : pages
File Size : 28,69 MB
Release : 1990
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Author : M. Situ
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Page : pages
File Size : 32,32 MB
Release : 1999
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Page : 20 pages
File Size : 28,39 MB
Release : 2008
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The Hypersonic International Flight Research Experimentation (HIFiRE) Program is a joint effort between the US Air Force Research Laboratory (AFRL) and the Australian Defence Scientific and Technology Organisation (DSTO) devoted to the study of basic hypersonic phenomena through flight experimentation. Experiments have been planned to explore the operating, performance, and stability characteristics of a simple hydrocarbon-fueled scramjet combustor as it transitions from dual-mode to scramjet-mode operation and during supersonic combustion at Mach 8+ flight conditions. This paper describes initial efforts to develop the isolator/combustor flowpath for these flight experiments. Computational results suggest that excellent performance can be obtained at Mach 8 flight conditions with simple inclined wall fuel injection upstream of a cavity-based flameholder using both ethylene and a mixture of ethylene and methane. Computational analyses have also been used to explore combustor operability and performance at flight Mach numbers between 6 and 8 to identify where mode transition can be expected to occur.
Author : Gautam Choubey
Publisher : Butterworth-Heinemann
Page : 198 pages
File Size : 11,19 MB
Release : 2022-07-08
Category : Technology & Engineering
ISBN : 0323995667
Scramjet Combustion explores the development of a high-speed scramjet engine operating in the supersonic/hypersonic range for various air and space transport applications. The book explains the basic structure, components, working cycle, and the relevant governing equations in a clear manner that speaks to both advanced and more novice audiences. Particular attention is paid to efficient air–fuel combustion, looking at both the underlying fundamentals of combustion as well strategies for obtaining optimum combustion efficiency. Methods for reaching the chemically correct air–fuel ratio, subsequent flame, and combustion stabilization as air enters at supersonic speed are also outlined. Further, it includes the continuous on-going efforts, innovations, and advances with respect to the design modification of scramjet combustors, as well as different strategies of fuel injections for obtaining augmented performance while highlighting the current and future challenges. - Outlines the fundamentals of scramjet engines including their basic structure and components, working cycle, governing equations, and combustion fundamentals affecting the combustion and mixing processes - Presents new design modifications of scramjet combustors and different fuel injection strategies including combined fuel injection approaches - Discusses core topics such as chemical kinetics in supersonic flow, fuel–air mixing methods, strategies for combating combustion difficulties, and subsequent flame and combustion stabilization that can be applied to scramjets - Describes the pedagogy for computational approaches in simulating supersonic flows
Author : J. Leng
Publisher :
Page : 40 pages
File Size : 22,69 MB
Release : 1982
Category : Aircraft exhaust emissions
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Page : 0 pages
File Size : 45,73 MB
Release : 2002
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There have been studies on hydrocarbon-fueled vehicle concept in a range of Mach numbers. It is assumed that the upper bounds of using hydrocarbon fuels lie between Mach numbers 6-8. Many investigations of scramjets with a hydrogen fuel on models in wind tunnels of are known. But only few works are known, which concerned the study of hydrocarbon fuel combustion and especially combustion of liquid kerosene. Therefore, the investigation of liquid fuel combustion is very important. It is necessary to evaluate the possibility of full engine model tests in a hot-shot wind tunnel under flight conditions.
Author : Corin Segal
Publisher : Cambridge University Press
Page : 271 pages
File Size : 11,82 MB
Release : 2009-06-22
Category : Technology & Engineering
ISBN : 0521838150
Demand for high-speed propulsion has renewed development of the supersonic combustion ramjet engine (Scramjet engine) for hypersonic flight applications.
Author : E. T. Curran
Publisher : AIAA
Page : 1354 pages
File Size : 29,84 MB
Release : 2001
Category : Airplanes
ISBN : 9781600864414
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Page : 48 pages
File Size : 22,31 MB
Release : 1992
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Page : 138 pages
File Size : 46,48 MB
Release : 2005
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Planar laser-induced fluorescence (PLIF) of OH and wall-pressure measurements have been used to investigate the combustion in a cavity flame-holder scramjet combuster.