Large Eddy Simulations and Experimental Investigation of Flow in a Swirl Stabilized Combustor

Handle URI:
http://hdl.handle.net/10754/598695
Title:
Large Eddy Simulations and Experimental Investigation of Flow in a Swirl Stabilized Combustor
Authors:
Kewlani, Gaurav; Labry, Zachary; Abani, Neerav; Shanbhogue, Santosh; Ghoniem, Ahmed
Abstract:
Swirling flows are the preferred mode of flame stabilization in lean premixed gas turbine engine combustors. Developing a fundamental understanding of combustion dynamics and flame stability in such systems requires a detailed investigation of the complex interactions between fluid mechanics and combustion. The turbulent reacting flow in a sudden expansion swirl combustor is studied using compressible large eddy simulations (LES) and compared with experimental data measured using PIV. Different vortex breakdown structures are observed, as the mixture equivalence ratio is reduced, that progressively diminish the stability of the flame. Sub-grid scale combustion models such as the artificially thickened flame method and the partially stirred reactor approach, along with appropriate chemical schemes, are implemented to describe the flame. The numerical predictions for average velocity correspond well with experimental results, and higher accuracy is obtained using the more detailed reaction mechanism. Copyright © 2012 American Institute of Aeronautics and Astronautics, Inc.
Publisher:
American Institute of Aeronautics and Astronautics (AIAA)
Journal:
50th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
KAUST Grant Number:
KUS-110-010-01
Issue Date:
9-Jan-2012
DOI:
10.2514/6.2012-178
Type:
Conference Paper
Sponsors:
This research was funded under grant number KUS-110-010-01 from the King Abdullah University of Scienceand Technology. The authors would also like to acknowledge the contributions by Prof. Cheng Zhang and AndrewShroll to the discussions.
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorKewlani, Gauraven
dc.contributor.authorLabry, Zacharyen
dc.contributor.authorAbani, Neeraven
dc.contributor.authorShanbhogue, Santoshen
dc.contributor.authorGhoniem, Ahmeden
dc.date.accessioned2016-02-25T13:34:36Zen
dc.date.available2016-02-25T13:34:36Zen
dc.date.issued2012-01-09en
dc.identifier.doi10.2514/6.2012-178en
dc.identifier.urihttp://hdl.handle.net/10754/598695en
dc.description.abstractSwirling flows are the preferred mode of flame stabilization in lean premixed gas turbine engine combustors. Developing a fundamental understanding of combustion dynamics and flame stability in such systems requires a detailed investigation of the complex interactions between fluid mechanics and combustion. The turbulent reacting flow in a sudden expansion swirl combustor is studied using compressible large eddy simulations (LES) and compared with experimental data measured using PIV. Different vortex breakdown structures are observed, as the mixture equivalence ratio is reduced, that progressively diminish the stability of the flame. Sub-grid scale combustion models such as the artificially thickened flame method and the partially stirred reactor approach, along with appropriate chemical schemes, are implemented to describe the flame. The numerical predictions for average velocity correspond well with experimental results, and higher accuracy is obtained using the more detailed reaction mechanism. Copyright © 2012 American Institute of Aeronautics and Astronautics, Inc.en
dc.description.sponsorshipThis research was funded under grant number KUS-110-010-01 from the King Abdullah University of Scienceand Technology. The authors would also like to acknowledge the contributions by Prof. Cheng Zhang and AndrewShroll to the discussions.en
dc.publisherAmerican Institute of Aeronautics and Astronautics (AIAA)en
dc.titleLarge Eddy Simulations and Experimental Investigation of Flow in a Swirl Stabilized Combustoren
dc.typeConference Paperen
dc.identifier.journal50th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Expositionen
dc.contributor.institutionMassachusetts Institute of Technology, Cambridge, United Statesen
kaust.grant.numberKUS-110-010-01en
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