Results 221 to 230 of about 3,707 (264)
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Vortex mixing for supersonic combustion
Symposium (International) on Combustion, 1969Fundamental concepts of mixing and combustion theory are examined in order to define an optimum system. By analogy with the familiar parameter “combustion intensity,” a “mixing intensity” is defined as the total mass of fuel and air mixed per unit time, volume, and density.
J. Swithebank, N.A. Chigier
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Application of Supersonic Combustion to Ramjets
Aircraft Engineering and Aerospace Technology, 1966THE interest shown lately in ramjet‐type engines for propulsion of hypersonic vehicles within the atmosphere has led us to consider using supersonic combustion ramjets, also called scramjets. It appears that this type of combustion is mandatory when the flight Mach number is of the order of 12.
Louis Viaud, André Mestre
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Investigation of Mixing and Combustion in Supersonic Flows
The significance of green transportation at hypersonic speeds is the current field of research for space launchers and commercial trans atmospheric vehicles. However, due to their high speeds at Mach > 1, results in a very short residence time of the order of few milliseconds (10 -3 – 10 -4 s) minimizing the chances for air-fuel barely mix and burn.Palateerdham, Sasi Kiran +3 more
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FUNDAMENTAL ASPECTS OF SUPERSONIC COMBUSTION
1970Abstract : The application of turbulence theory to the design of supersonic combustors has been investigated both experimentally and theoretically. Experimental studies carried out in the 150 mm shock tunnel have shown that a vortex fuel injector can release the heat extremely rapidly (about 200mm) at a stream velocity of about 3000 m/s.
M. Jaques, J. Swithenbank
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Combustion processes in supersonic flow
Journal of Propulsion and Power, 1988Three general classes of models that describe the processes occurring in diabatic flow in ducts having supersonic entry conditions are discussed. They are: integral techniques, finite-difference methods, and exact two-dimensional planar flame models formulated on the basis of instantaneous heat release.
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Combustion Efficiencies of Supersonic Flames
Journal of Propulsion and Power, 2001Measuredvaluesofcombustionefe ciencyc,whichquantifytheamountofhydrogenfuelthatremainsunburned because the fuel has insufe cient residence time in the reaction zone of a supersonic e ame, are reported. Trends are reported as the fuel e ow rate and the stagnation temperature are systematically varied.
Albert Ratner +3 more
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Mixing Problems in Supersonic Combustion
1989The attainment of satisfactory supersonic combustion requires that the fuel and air be mixed to a sufficient extent at the molecular level, at a high enough temperature, so that the combustion reaction is largely complete before the gases leave the combustor. The macro-mixing must be achieved through turbulence, and molecular diffusion effects are only
J. Swithenbank +4 more
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Detonation As Combustion in a Supersonic Flow of a Combustible Mixture
Combustion, Explosion, and Shock Waves, 2022openaire +1 more source
A Study of Supersonic Combustion
Journal of the Aerospace Sciences, 1960Gross, Robert A., Chinitz, Wallace
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