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Recent progress in filtered Rayleigh scattering: Towards the simultaneous acquisition of pressure, temperature and three-component velocity fields

Doll, Ulrich and Stockhausen, Guido and Willert, Christian (2018) Recent progress in filtered Rayleigh scattering: Towards the simultaneous acquisition of pressure, temperature and three-component velocity fields. 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 filtered Rayleigh scattering technique extended by the method of frequency scanning offers a viable option to efficiently characterize the aero-thermal properties of technical flows. The first part of the study is concerned with the identification and treatment of detrimental effects towards the methods uncertainty budget. Presented background correction as well as a novel approach with regard to the Rayleigh scattering's spectral distribution yields measurement accuracies for pressure, temperature and flow velocity below 15 hPa, 2.5 K and 2.7 m/s, respectively. Based on an observation of the plane of interest from multiple views, an FRS velocimeter is brought into use, which is capable to simultaneously acquire pressure, temperature as well as three-component velocity maps.

Item URL in elib:https://elib.dlr.de/121146/
Document Type:Conference or Workshop Item (Speech)
Title:Recent progress in filtered Rayleigh scattering: Towards the simultaneous acquisition of pressure, temperature and three-component velocity fields
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Doll, UlrichPaul Scherrer Institut (CH)https://orcid.org/0000-0002-9876-9509
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, DGV, laser-based 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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