Swirl flow response to transverse and axial acoustic forcing

A Saurabh, CO Paschereit - Journal of Fluid Science and …, 2014 - jstage.jst.go.jp
The present study is an experimental investigation on the effect of axial and transverse
acoustic forcing on a generic swirl flow. The aim is to provide a qualitative understanding of …

Combustion instability in a swirl flow combustor with transverse extensions

A Saurabh, CO Paschereit - … Expo: Power for …, 2013 - asmedigitalcollection.asme.org
The present investigation is an analysis of self-excited combustion instability in a swirl flame-
based combustor with transverse extensions. Transverse extensions create the possibility of …

Further characterization of the disturbance field in a transversely excited swirl-stabilized flame

J O'Connor, T Lieuwen - 2012 - asmedigitalcollection.asme.org
This paper describes an analysis of the unsteady flow field in swirl flames subjected to
transverse acoustic waves. This work is motivated by transverse instabilities in annular gas …

Swirl flame response to simultaneous axial and transverse velocity fluctuations

A Saurabh, JP Moeck… - … of Engineering for …, 2017 - asmedigitalcollection.asme.org
In this experimental study, we investigate the impact of transverse acoustic velocity
fluctuations on flame response to axial velocity fluctuations. Such a scenario where a flame …

[图书][B] Response of a swirl-stabilized flame to transverse acoustic excitation

J O'Connor - 2012 - search.proquest.com
This work addresses the issue of transverse combustion instabilities in annular gas turbine
combustor geometries. While modern low-emissions combustion strategies have made …

Disturbance field characteristics of a transversely excited burner

J O'Connor, T Lieuwen - Combustion Science and Technology, 2011 - Taylor & Francis
Transverse acoustic instabilities in premixed, swirl-stabilized flames are an important
problem in low NOx combustors. Transverse excitation of swirling flames involves complex …

Influence of transverse acoustic modal structure on the forced response of a swirling nozzle flow

J O'Connor, T Lieuwen - … Expo: Power for …, 2012 - asmedigitalcollection.asme.org
This study describes continued investigations of the response of a swirling flow to transverse
acoustic excitation. This work is motivated by transverse combustion instabilities in annular …

Dynamics of premixed swirl flames under the influence of transverse acoustic fluctuations

A Saurabh, CO Paschereit - Combustion and Flame, 2017 - Elsevier
Flame dynamics in the presence of transverse acoustic fluctuations is an aspect of relevance
to modern annular combustors. In particular, it is a key element underlying the occurrence …

Effect of excitation amplitude on disturbance field of a transversely forced swirl flow and flame

JA O'Connor - 52nd Aerospace Sciences Meeting, 2014 - arc.aiaa.org
High amplitude combustion instabilities are a destructive and increasingly pervasive
problem in gas turbine combustors. Although much research has focused on measuring the …

Effect of outlet boundary condition on the acoustic modeshape and flame dynamics of a partially premixed swirl stabilized combustor

S Sreedeep, V Ramanan… - … for Gas Turbines …, 2023 - asmedigitalcollection.asme.org
Industrial gas turbines commonly use lean premixed swirl stabilized combustors that are
prone to thermo-acoustic instabilities. Combustor testing involves several steps ranging from …