Results 11 to 20 of about 27,437 (306)
Fluids, 2020 A recent predictive scenario of premixed flame propagation in unobstructed passages is extended to account for obstructions that can be encountered in facilities dealing with explosive materials such as in coalmines.
Furkan Kodakoglu +3 more
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Pulsating regimes of flames propagation in a model with chain-branching reaction [PDF]
Компьютерные исследования и моделирование, 2009 In this paper we investigate propagation of planar combustion waves in an adiabatic model with two-step chain branching reaction mechanism. Pulsating instabilities are found to emerge for fuel Lewis number greater than one due to a Hopf bifurcation.
V. V. Gubernov +2 more
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Energy and AI, 2021 The intermittent nature of operation and unpredictable availability of renewable sources of energy (e.g., wind and solar) would require the combustors in fossil-fuel power plants, sharing the same grid, to operate with large turn-down ratios. This brings
Sudeepta Mondal +3 more
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Experimental Investigation of Flame Anchoring Behavior in a LOX/LNG Rocket Combustor
Aerospace, 2023 Hot fire tests of a multi-injector research combustor were performed with liquid-oxygen and liquefied-natural-gas (LOX/LNG) propellants at chamber pressures from 30 up to 67 bar, hence at conditions similar to an upper stage rocket engine.
Jan Martin +4 more
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Numerical Analysis of Self-Excited Combustion Instabilities in a Small MMH/NTO Liquid Rocket Engine
International Journal of Aerospace Engineering, 2020 Combustion instabilities in a small MMH/NTO liquid rocket engine used for satellite attitude and course control are numerically investigated. A three-dimensional Navier-Stokes code is developed to simulate two-phase spray combustion for cases with five ...
Jianxiu Qin, Huiqiang Zhang
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Effect of ramp-cavity on hydrogen fueled scramjet combustor
Propulsion and Power Research, 2014 Sustained combustion and optimization of combustor are the two challenges being faced by combustion scientists working in the area of supersonic combustion.
J.V.S. Moorthy +3 more
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Some dynamics of acoustic oscillations with nonlinear combustion and noise [PDF]
, 1997 The results given in this paper constitute a continuation of progress with nonlinear analysis of coherent oscillations in combustion chambers. We are currently focusing attention on two general problems of nonlinear behavior important to practical ...
Burnley, V. S., Culick, F. E. C.
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3D convolutional selective autoencoder for instability detection in combustion systems
Energy and AI, 2021 While analytical solutions of critical (phase) transitions in dynamical systems are abundant for simple nonlinear systems, such analysis remains intractable for real-life dynamical systems. A key example is thermoacoustic instability in combustion, where
Tryambak Gangopadhyay +6 more
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Accounting for convective effects in zero-Mach-number thermoacoustic models [PDF]
, 2014 This paper presents a methodology to account for some mean-flow effects on thermo-acoustic instabilities when using the zero-Mach-number assumption. It is shown that when a computational domain is represented under the M=0 assumption, a nonzero-Mach ...
Bloxsidge +48 more
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Cycle-Resolved Computations of Stratified-Charge Turbulent Combustion in Direct Injection Engine
Journal of Thermal Science and Technology, 2013 An extremely lean burning engine has been expected to improve fuel consumption rate of engines. To achieve this, stable combustion should be realized for a wide range of operating conditions at air-fuel ratio over 40.0.
Nobuhiro SHINMURA +2 more
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