Results 11 to 20 of about 10,676 (308)
Effect of Mixing Section Acoustics on Combustion Instability in a Swirl-Stabilized Combustor
Energies, 2022 An experimental study was performed to investigate the characteristics of two different combustion instability modes in a swirl-stabilized combustor. The first is the eigenfrequency corresponding to the half-wave of the combustion chamber section, and ...
Donghyun Hwang +2 more
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Combustion instability sustained by unsteady vortex combustion [PDF]
21st Joint Propulsion Conference, 1985 The determination of an internal feedback mechanism which leads to combustion instability inside a small scale laboratory combustor is presented in this paper. During combustion instability, the experimental findings show that a large vortical structure is formed at an acoustic resonant mode of the system.
Smith, D. A., Zukoski, E. E.
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Combustion instability control in the model of combustion chamber [PDF]
Journal of Physics: Conference Series, 2013 An experimental study of the influence of external periodic perturbations on the instability of the combustion chamber in a pulsating combustion. As an external periodic disturbances were used sound waves emitted by the electrodynamics. The purpose of the study was to determine the possibility of using the method of external periodic perturbation to ...
Akhmadullin A. +3 more
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Influence of Flow Rate Distribution on Combustion Instability of Hypergolic Propellant
Aerospace, 2022 Combustion instability is the biggest threat to the reliability of liquid rocket engines, whose prediction and suppression are of great significance for engineering applications.
Yushan Gao +4 more
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Multifractality in combustion noise: predicting an impending combustion instability [PDF]
, 2014 The transition in dynamics from low-amplitude, aperiodic, combustion noise to high-amplitude, periodic, combustion instability in confined, combustion environments was studied experimentally in a laboratory-scale combustor with two different flameholding
Nair, Vineeth, Sujith, R. I.
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A Real-Time Combustion Instability Simulation with Comprehensive Thermo-Acoustic Dynamic Model
Energies, 2018 The thermo-acoustic instability in the combustion process of a gas turbine is caused by the interaction of the heat release mechanism and the pressure perturbation.
Jaeyoung Han +3 more
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Fingering Instability in Combustion [PDF]
Physical Review Letters, 1998 A thin solid (e.g., paper), burning against an oxidizing wind, develops a fingering instability with two decoupled length scales. The spacing between fingers is determined by the Péclet number (ratio between advection and diffusion). The finger width is determined by the degree two dimensionality. Dense fingers develop by recurrent tip splitting.
Zik, O., Olami, Z., Moses, E.
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Journal of Low Frequency Noise, Vibration and Active Control, 2023 Accurate prediction of thermoacoustic instability is a prerequisite for thermoacoustic control to avoid the damage of combustion chamber, however, this problem has not been completely solved yet.
Qingwen Zeng +5 more
doaj +1 more source
Aerospace, 2023 Combustion instability constitutes the primary loss source of combustion chambers, gas turbines, and aero engines, and it affects combustion performance or results in a sudden local oscillation.
Nan Meng, Feng Li
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Acoustic and Large Eddy Simulation studies of azimuthal modes in annular combustion chambers [PDF]
, 2012 The objectives of this paper are the description of azimuthal instability modes found in annular combus- tion chambers using two numerical tools: (1) Large Eddy Simulation (LES) methods and (2) acoustic solv- ers.
Wolf, Pierre +4 more
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