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Noise Generated in a Scramjet Combustor
AIAA SCITECH 2023 Forum, 2023This paper presents the noise levels generated inside a two-dimensional scramjet combustor at Mach 7.3 freestream using the focused laser differential interferometric (FLDI) technique. FLDI measurements were taken at the front, middle, and rear of the combustor’s center plane under unfueled, combustion-suppressed, and combustion-on conditions ...
Ramprakash Ananthapadmanaban +3 more
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16th AIAA/DLR/DGLR International Space Planes and Hypersonic Systems and Technologies Conference, 2009
An investigation is undertaken into the potential use of carbon-carbon materials for Scramjet combustors and configurations utilising regenerative and radiative cooling are considered. The analysis uses the ANSYS package to couple a CFD analysis of the fuel cooling with a structural thermal analysis.
Zander, Fabian, Morgan, Richard
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An investigation is undertaken into the potential use of carbon-carbon materials for Scramjet combustors and configurations utilising regenerative and radiative cooling are considered. The analysis uses the ANSYS package to couple a CFD analysis of the fuel cooling with a structural thermal analysis.
Zander, Fabian, Morgan, Richard
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2007
This paper outlines the theory of radical farming in scramjets and describes the experimental scramjet model that was designed to investigate it. Experiments were conducted at two conditions; a 3MJ/kg condition corresponding to Mach 7.9 flight at an altitude of 24km and a 4MJ/kg condition corresponding to Mach 9.1 flight at an altitude of 32km.
Odaml J., Paull A.
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This paper outlines the theory of radical farming in scramjets and describes the experimental scramjet model that was designed to investigate it. Experiments were conducted at two conditions; a 3MJ/kg condition corresponding to Mach 7.9 flight at an altitude of 24km and a 4MJ/kg condition corresponding to Mach 9.1 flight at an altitude of 32km.
Odaml J., Paull A.
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The Aeronautical Journal, 2007
AbstractThe supersonic combustion ramjet, or scramjet, is the engine cycle most suitable for sustained hypersonic flight in the atmosphere. This article describes some of the challenges facing scramjet designers, and the methods currently used for the calculation of scramjet performance.
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AbstractThe supersonic combustion ramjet, or scramjet, is the engine cycle most suitable for sustained hypersonic flight in the atmosphere. This article describes some of the challenges facing scramjet designers, and the methods currently used for the calculation of scramjet performance.
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Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 1999
As flight speed increases into the hypersonic regime, the stagnation pressure and temperature inside the engine become so great that, for practical structures of acceptable mass, the flow must pass through the engine at supersonic, rather than subsonic, speeds, hence the term ‘scramjet’ (supersonic combustion ramjet).
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As flight speed increases into the hypersonic regime, the stagnation pressure and temperature inside the engine become so great that, for practical structures of acceptable mass, the flow must pass through the engine at supersonic, rather than subsonic, speeds, hence the term ‘scramjet’ (supersonic combustion ramjet).
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2021
Combustion occurs at supersonic speeds in a scramjet engine. Lower air residence time is the factor affecting proper fuel–air mixing, flame propagation and cooling of engine components. This current study includes systematic review of fuel–air mixing inside the combustor through various design changes and augmentations and strides to present at the ...
Riyan Cyriac Jose +3 more
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Combustion occurs at supersonic speeds in a scramjet engine. Lower air residence time is the factor affecting proper fuel–air mixing, flame propagation and cooling of engine components. This current study includes systematic review of fuel–air mixing inside the combustor through various design changes and augmentations and strides to present at the ...
Riyan Cyriac Jose +3 more
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LES of the Hyshot Scramjet Combustor
48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition, 2010With the overall goal to clarify the physics of com pressible (supersonic) combustion, a 3D LES of the HyShot supersonic combustor has been performed and is reported in this paper. HyShot is an (originally) Australian p rogram to assess feasibility of supersonic combustion by means of a ballistic test flight.
INGENITO, ANTONELLA, C. Bruno, D. Cecere
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LES Modeling of Scramjet Combustion
44th AIAA Aerospace Sciences Meeting and Exhibit, 2006The physics of supersonic combustion is analyzed in order to derive a new subgrid scale model for Large Eddy Simulation. Anisotropy associated to the directional Mach number typical of supersonic flows (i. e., M > 1 in only one direction) is explicitly considered by means of non-dimensionalized Navier-Stokes equations.
INGENITO, ANTONELLA +4 more
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Scramjet intake and exhaust CFD studies for the HyShot scramjet flight experiment
10th AIAA/NAL-NASDA-ISAS International Space Planes and Hypersonic Systems and Technologies Conference, 2001Computational fluid dynamics calculations have been performed in support of the HyShot scramjet flight experiment, which will employ two symmetrically opposed intake/combustor/exhaust nozzles (one being fuel-on, the other fuel-off). Bleed ducts for removal of intake shocks and boundary and entropy layers are incorporated.
Boyce R.R., Paull A.
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Scramjet Experiments using Radical Farming [PDF]
, 2023 Scramjet engines are the focus of considerable interest for propulsion in the hypersonic flow regime. One of the serious technical challenges for developing scramjets is reducing the skin friction drag on the engine. The combustion chamber, in particular, is a major contributor to the skin friction drag because of the high density of the flow through ...
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