Results 11 to 20 of about 6,818 (260)
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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Investigations on Complex Acoustic Modes of Rocket Engines Combustion Chambers for Damping Allocation [PDF]
Journal of Aerospace Technology and Management, 2021 Combustion instability can severely impair the operation of many kinds of combustion engines. Acoustic resonators are widely used to suppress the pressure oscillations caused by the coupling between the combustion process and the combustion chamber ...
Gustavo Paulinelli Guimarães +3 more
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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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One-dimensional flame instability and control of burning in fire-chamber
Trudy Odesskogo Politehničeskogo Universiteta, 2015 The flame stability with regard to one-dimensional exponential perturbations both for the combustion in the fire-chamber and the flame propagating in closed tubes or chambers is investigated. It is proved that both stability and instability are possible
Віктор Едуардович Волков
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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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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
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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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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.
openaire +2 more sources
Linear Instability Analysis of Lean Premixed Combustion
Journal of Thermal Science and Technology, 2012 Combustion oscillation of a self excited combustion-acoustic phenomenon occurs inside the gas turbine combustor. In general, excessive pressure fluctuation of combustion oscillation may impair the gas turbine engine operation and may result in hardware ...
Kazufumi IKEDA +3 more
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Acta Acustica, 2022 Combustion instability caused by the amplification of sound waves is called acoustic or high-frequency instability, which can cause severe damage to the system. Adding baffles is one of the methods of passive instability control.
Salarvand Hamid +3 more
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