[PDF][PDF] Nonlinear dynamics of an unstable swirl combustor: frequency locking and open loop control

B Bellows, A Hreiz, T Lieuwen - … of the International Colloquium on the …, 2005 - icders.org
Results The reported tests were performed at a nominally unstable condition, with an
instability frequency of 461 Hz. The forcing frequencies investigated ranged from 150 to 430 …

Nonlinear interactions between driven and self-excited acoustic oscillations in a premixed combustor

B Bellows, A Hreiz, T Lieuwen - 44th AIAA Aerospace Sciences …, 2006 - arc.aiaa.org
This paper describes an experimental investigation of the nonlinear interactions between
self-excited and driven oscillations in a premixed swirl-stabilized combustor. This interaction …

Active Control of a Low Emission Swirl-Stabilised Combustor

EJ Gutmark, CO Paschereit… - APS Division of …, 1997 - ui.adsabs.harvard.edu
Instability modes were investigated and controlled in an experimental low-emission swirl
stabilised combustor, in which the acoustic boundary conditions were modified to increase …

Passive Control of Unstable Combustion in a Swirl-Stabilized Spray Combustor

M Linck, M Armani, A Gupta - 42nd AIAA Aerospace Sciences Meeting …, 2004 - arc.aiaa.org
Combustion instabilities in lean premixed combustors are often manifested by pressure
oscillations that can result in serious performance degradation and even cause failure …

[DOC][DOC] Effect of Acoustic Oscillations on Fluid Dynamics and Flame Stability in a Swirl Burner/Furnace

VM Rodriguez-Martinez, JR Dawson, N Syred… - Combust. Sci Tech … - researchgate.net
Two different types of combustion instabilities were excited in a scale model partially
premixed swirl burner/furnace by modifying the downstream boundary conditions. Both …

Nonlinear dynamics of a swirl-stabilized combustor under acoustic excitations: Influence of the excited combustor natural mode oscillations

Z Rao, R Li, B Zhang, B Wang, D Zhao… - Flow, Turbulence and …, 2021 - Springer
In this study, experimental measurements are performed on a swirl-stabilized combustor to
study the nonlinear combustor dynamic characteristics under acoustic excitations. The …

Nonlinear interactions between the fundamental and higher harmonics of self-excited combustion instabilities

KT Kim - Combustion Science and Technology, 2017 - Taylor & Francis
Measurements of self-excited combustion instability were performed in a lean-premixed,
swirl-stabilized, gas turbine combustor in order to characterize the interaction between the …

Characteristics and control of combustion instabilities in a swirl-stabilized spray combustor

S Murugappan, S Acharya, E Gutmark… - 35th Joint Propulsion …, 1999 - arc.aiaa.org
The present work deals with active control of combustion instabilities in a swirlstabilized
spray combustor. The combustor was characterized by a thermo-acoustic instability at …

Coherent structures in swirling flows and their role in acoustic combustion control

CO Paschereit, E Gutmark, W Weisenstein - Physics of Fluids, 1999 - pubs.aip.org
Interaction between flow instabilities and acoustic resonant modes and their effect on heat
release were investigated and controlled in an experimental low-emission swirl stabilized …

Effect of swirl on combustion dynamics in a lean-premixed swirl-stabilized combustor

Y Huang, V Yang - Proceedings of the combustion institute, 2005 - Elsevier
The effect of inlet swirl on the flow development and combustion dynamics in a lean-
premixed swirl-stabilized combustor has been numerically investigated using a large-eddy …