Dynamics of swirling flames
In many continuous combustion processes, such as those found in aeroengines or gas
turbines, the flame is stabilized by a swirling flow formed by aerodynamic swirlers. The …
turbines, the flame is stabilized by a swirling flow formed by aerodynamic swirlers. The …
Progress and challenges in swirling flame dynamics
In many continuous combustion processes the flame is stabilized by swirling the injected
flow. This is the case for example in aeroengine combustors or in gas turbines where …
flow. This is the case for example in aeroengine combustors or in gas turbines where …
Experimental study of vortex-flame interaction in a gas turbine model combustor
The interaction of a helical precessing vortex core (PVC) with turbulent swirl flames in a gas
turbine model combustor is studied experimentally. The combustor is operated with air and …
turbine model combustor is studied experimentally. The combustor is operated with air and …
Understanding the role of flow dynamics in thermoacoustic combustion instability
J O'Connor - Proceedings of the Combustion Institute, 2023 - Elsevier
Thermoacoustic combustion instability is one of the most challenging operational issues in
several high-performance, low-emissions combustion technologies, including gas turbines …
several high-performance, low-emissions combustion technologies, including gas turbines …
Nonlinear interaction between a precessing vortex core and acoustic oscillations in a turbulent swirling flame
The interaction of a helical mode with acoustic oscillations is studied experimentally in a
turbulent swirl-stabilized premixed flame. In addition to a precessing vortex core (PVC), the …
turbulent swirl-stabilized premixed flame. In addition to a precessing vortex core (PVC), the …
Flame dynamics of a variable swirl number system and instability control
Swirling flame dynamics is investigated using a radial swirler equipped with movable
blades. This device allows to continuously change the swirl number and to examine various …
blades. This device allows to continuously change the swirl number and to examine various …
Recirculation zone dynamics of a transversely excited swirl flow and flame
J O'Connor, T Lieuwen - Physics of fluids, 2012 - pubs.aip.org
This work investigates the response of the vortex breakdown region of a swirling, annular jet
to transverse acoustic excitation for both non-reacting and reacting flows. This swirling flow …
to transverse acoustic excitation for both non-reacting and reacting flows. This swirling flow …
Parametric study of vortex structures and their dynamics in swirl-stabilized combustion
AM Steinberg, CM Arndt, W Meier - Proceedings of the Combustion …, 2013 - Elsevier
The dynamics of major flow structures were studied in a gas turbine model combustor for
perfectly premixed swirl-stabilized flames under a variety of reacting and non-reacting …
perfectly premixed swirl-stabilized flames under a variety of reacting and non-reacting …
Thermo-acoustic velocity coupling in a swirl stabilized gas turbine model combustor
V Caux-Brisebois, AM Steinberg, CM Arndt… - Combustion and …, 2014 - Elsevier
Limit-cycle thermo-acoustic velocity coupling mechanisms are studied in a perfectly-
premixed swirl-stabilized combustor using data from 10 kHz repetition-rate stereoscopic …
premixed swirl-stabilized combustor using data from 10 kHz repetition-rate stereoscopic …
Effects of flow structure dynamics on thermoacoustic instabilities in swirl-stabilized combustion
COMBUSTION-DRIVEN pressure and heat-release oscilla-tions, or thermoacoustic
instabilities, are a major problem in low-emission gas-turbine engines [1–4]. These …
instabilities, are a major problem in low-emission gas-turbine engines [1–4]. These …