Cross-frequency coupling during thermoacoustic oscillations in a pressurized aeronautical gas turbine model combustor

ML Passarelli, TM Wabel, A Cross… - Proceedings of the …, 2021 - Elsevier
This paper demonstrates cross-frequency coupling between pressure, heat release rate, fuel
spray and velocity oscillations in a model aeronautical gas turbine combustor operating at a …

Dynamics and mechanisms of pressure, heat release rate, and fuel spray coupling during intermittent thermoacoustic oscillations in a model aeronautical combustor at …

S Kheirkhah, JDM Cirtwill, P Saini, K Venkatesan… - Combustion and …, 2017 - Elsevier
Dynamics of thermoacoustics oscillations occurring in a liquid fueled aeronautical gas
turbine model combustor burning Jet A fuel were investigated experimentally at a pressure …

[图书][B] The Investigation and Semi-Empirical Modeling of Thermoacoustic Phase Relationships in a Lean Premixed Prevapourized Combustor at Elevated Pressure

JDM Cirtwill - 2017 - search.proquest.com
This document presents an investigation of the self-excited coupling mechanisms that occur
to produce both low-amplitude intermittent, as well as high-amplitude limit-cycle pressure …

Synchronization During Multi-Mode Thermoacoustic Oscillations in a Liquid-Fueled Gas Turbine Combustor at Elevated Pressure

ML Passarelli, JDM Cirtwill… - … Expo: Power for …, 2019 - asmedigitalcollection.asme.org
This paper analyzes intermittent self-excited thermoacoustic oscillations in which the
pressure (P′) and heat release rate (q̇′) fluctuations are harmonically coupled. That is to …

Non-stationary local thermoacoustic phase relationships in a gas turbine combustor

S Kheirkhah, BD Geraedts, P Saini… - Proceedings of the …, 2017 - Elsevier
A framework is presented for analyzing the local instantaneous phase difference between
non-stationary heat release rate and pressure oscillations that is appropriate for use in high …

Thermoacoustically-Based Combustion Oscillation in a Gas Turbine—A Brief Note

FL Eisinger, RE Sullivan - J. Pressure …, 2003 - asmedigitalcollection.asme.org
Thermoacoustic combustion oscillation and vibration experienced in a gas turbine at
operation is reported. The oscillation manifested itself at two distinct frequencies …

Nonlinear heat-release/acoustic interactions in a gas turbine combustor

B Bellows, T Lieuwen - Turbo Expo: Power for Land …, 2004 - asmedigitalcollection.asme.org
This paper describes an experimental investigation of the response of the flame in a lean,
premixed combustor to imposed acoustic oscillations. The ultimate objective of this work is to …

Experimental analysis of thermo-acoustic instabilities in a generic gas turbine combustor by phase-correlated PIV, chemiluminescence, and laser Raman scattering …

CM Arndt, M Severin, C Dem, M Stöhr… - Experiments in …, 2015 - Springer
A gas turbine model combustor for partially premixed swirl flames was equipped with an
optical combustion chamber and operated with CH 4 and air at atmospheric pressure. The …

Numerical modeling of thermoacoustic oscillations in a gas turbine combustion chamber

D Nowak, V Bellucci, J Cerny… - … Expo: Power for …, 2006 - asmedigitalcollection.asme.org
The prediction of high-frequency acoustic oscillations in gas turbine combustors is an
important issue, related to engine performance, NOx emissions, component lifetime and …

Pulsation-amplitude-dependent flame dynamics of high-frequency thermoacoustic oscillations in lean-premixed gas turbine combustors

FM Berger, T Hummel… - … for Gas Turbines …, 2018 - asmedigitalcollection.asme.org
This paper presents the experimental investigation of pulsation-amplitude-dependent flame
dynamics associated with transverse thermoacoustic oscillations at screech level …