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High-speed PIV at the exit of a lean-burn combustion chamber operated at elevated pressure

Willert, Christian and Schroll, Michael and Heinze, Johannes and Soworka, Thomas (2019) High-speed PIV at the exit of a lean-burn combustion chamber operated at elevated pressure. 13th International Symposium on Particle Image Velocimetry - ISPIV 2019, 22.-24. Jul. 2019, Munich, Germany.

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Official URL: https://athene-forschung.unibw.de/129143

Abstract

High-speed particle image velocimetry measurements were performed at the exit of a pressurized lean-burn combustion chamber fueled with kerosene and operated at flight relevant conditions (elevated pressure and pre-heated supply air). The aim was to obtain information on the turbulent nature of the exhaust flow as this is of relevance for the modelling of aero-thermal dynamics of the combustor-turbine interface, such as heat transfer on the outlet guide vanes and turbulence induced noise. Two-component velocity data was sampled at 20 kHz along a narrow strip and used to obtain frequency spectra and correlations. Synchronously acquired chemiluminescence of the OH radical in the primary zone exhibited a notable tonal peak near 100 Hz that could also be detected in the circumferential velocity component at one operating condition.

Item URL in elib:https://elib.dlr.de/128097/
Document Type:Conference or Workshop Item (Speech)
Title:High-speed PIV at the exit of a lean-burn combustion chamber operated at elevated pressure
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Willert, ChristianChris.Willert (at) dlr.dehttps://orcid.org/0000-0002-1668-0181
Schroll, MichaelMichael.Schroll (at) dlr.dehttps://orcid.org/0000-0003-0736-546X
Heinze, JohannesJohannes.Heinze (at) dlr.deUNSPECIFIED
Soworka, ThomasThomas.Soworka (at) dlr.deUNSPECIFIED
Date:22 July 2019
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:laser diagnostics, combustion diagnostics, particle image velocimetry, integral time scale, chemiluminescence, spatio-temporal correlation
Event Title:13th International Symposium on Particle Image Velocimetry - ISPIV 2019
Event Location:Munich, Germany
Event Type:international Conference
Event Dates:22.-24. Jul. 2019
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:propulsion systems
DLR - Research area:Aeronautics
DLR - Program:L ER - Engine Research
DLR - Research theme (Project):L - Virtual Engine and Validation methods
Location: Köln-Porz
Institutes and Institutions:Institute of Propulsion Technology > Engine Measurement Systems
Institute of Propulsion Technology > Combustor
Deposited By: Willert, Dr.phil. Christian
Deposited On:03 Sep 2019 15:25
Last Modified:03 Sep 2019 15:25

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