Results 11 to 20 of about 79,200 (357)
A Real-Time Combustion Instability Simulation with Comprehensive Thermo-Acoustic Dynamic Model [PDF]
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
doaj +2 more sources
Imaging Diagnositics of Combustion Instability in Premixed Swirling Combustion [PDF]
Proceedings of Global Power & Propulsion Society, 2019 An experimental study on combustion instability is presented with focus on propane-air premixed swirling flames. Swirling flames under self-excited oscillation are studied by imaging of visible light and OH* chemiluminescence filter under several typical conditions.
Yao Yang +4 more
openaire +2 more sources
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
doaj +3 more sources
Aerospace, 2023 Supersonic combustion instability studies are crucial for the future maturation of scramjet engines. In the present paper, the supersonic combustion instability in a strut-based scramjet combustor is investigated through large eddy simulation and dynamic
Yuwei Cheng +3 more
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
Experimental and numerical investigation of Helmholtz resonators and perforated liners as attenuation devices in industrial gas turbine combustors [PDF]
, 2014 This paper reports upon developments in the simulation of the passive control of combustion dynamics in industrial gas turbines using acoustic attenuation devices such as Helmholtz resonators and perforated liners.
Houston, B. +6 more
core +1 more source