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Laser-optical characterization of the flow field behind the NGV cascade of a three sector combustor simulator using filtered Rayleigh scattering

Dues, Michael and Doll, Ulrich and Bacci, Tomaso and Picchi, Alessio and Stockhausen, Guido and Willert, Christian (2018) Laser-optical characterization of the flow field behind the NGV cascade of a three sector combustor simulator using filtered Rayleigh scattering. 19th International Symposium on the Application of Laser and Imaging Techniques to Fluid Mechanics, 16.-19. Jul. 2018, Lisbon, Portugal.

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Official URL: http://www.lisbon-lasersymposium.org/lxlaser2018

Abstract

The aero-thermal properties of the flow field downstream of an NGV cascade of a three-sector combustor simulator rig are characterized by means of five-hole probe / temperature sensor measurements as well as laser-optical FSMFRS diagnostics. Both methods are applied to acquire and analyze pressure, temperature and velocity information in a cross section downstream of the NGV. The study discusses current capabilities as well as limitations of both methods when being applied to turbomachinery configurations. In general, results obtained with both methods are on a similar absolute level. Based on a more detailed analysis, strong evidence for an intrusive interaction between the five-hole probe and the flow downstream of the NGV is found, which is significantly influencing the probe's measurement accuracies.

Item URL in elib:https://elib.dlr.de/121147/
Document Type:Conference or Workshop Item (Speech)
Title:Laser-optical characterization of the flow field behind the NGV cascade of a three sector combustor simulator using filtered Rayleigh scattering
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Dues, MichaelILA R&D GmbHUNSPECIFIED
Doll, UlrichPaul Scherrer Institut (CH)https://orcid.org/0000-0002-9876-9509
Bacci, TomasoUniversity of FlorenceUNSPECIFIED
Picchi, AlessioUniversity of FlorenceUNSPECIFIED
Stockhausen, GuidoGuido.Stockhausen (at) dlr.dehttps://orcid.org/0000-0001-5893-5835
Willert, ChristianChris.Willert (at) dlr.dehttps://orcid.org/0000-0002-1668-0181
Date:16 July 2018
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:filtered Rayleigh scattering, FRS, , turbine flow, temperature, pressure, flow velocity, Doppler shift, velocimetry, planar density measurement, planar temperature measurement
Event Title:19th International Symposium on the Application of Laser and Imaging Techniques to Fluid Mechanics
Event Location:Lisbon, Portugal
Event Type:international Conference
Event Dates:16.-19. Jul. 2018
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
Deposited By: Willert, Dr.phil. Christian
Deposited On:30 Jul 2018 09:31
Last Modified:31 Jul 2019 20:18

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