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Applications of Density Tagging Velocimetry

Raffel, Markus and Raiser, Dirk and Schuster, Frank and Mulleners, Karen (2012) Applications of Density Tagging Velocimetry. 16th Int Symp on Applications of Laser Techniques to Fluid Mechanics, 09.-12. Jul. 2012, Lisbon, Portugal.

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Official URL: http://ltces.dem.ist.utl.pt/lxlaser/lxlaser2012/program.asp

Abstract

Recently, a novel optical technique for point-wise measurement of flow velocity called Density Tagging Velocimety (DTV) was proposed by Raffel et al (2012). This method is based on the detection and subsequent tracking of a local density variation deliberately inserted in the flow. The experimental implementation comprising tagging, detection, and velocity evaluation reverts to and combines principles of well–known optical measurement techniques. DTV is particularly suited for measuring flow velocities in regions where the use of tracer particles is difficult or undesired. The applicability of this new technique is illustrated here by wind tunnel measurements of an unsteady wake flow and temperature measurements in a convection chamber. The recording and evaluation schemes used are described and presented together with an accuracy analysis.

Item URL in elib:https://elib.dlr.de/73374/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Applications of Density Tagging Velocimetry
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Raffel, MarkusUNSPECIFIEDUNSPECIFIED
Raiser, DirkUNSPECIFIEDUNSPECIFIED
Schuster, FrankUNSPECIFIEDUNSPECIFIED
Mulleners, Karenmulleners (at) tfd.uni-hannover.deUNSPECIFIED
Date:2012
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-7
Series Name:Conference Proceedings online
Status:Published
Keywords:Density Tagging Velocimetry, DTV
Event Title:16th Int Symp on Applications of Laser Techniques to Fluid Mechanics
Event Location:Lisbon, Portugal
Event Type:international Conference
Event Dates:09.-12. Jul. 2012
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Rotorcraft (old)
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Virtual Aerodynamic Rotorcraft (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Helicopters
Deposited By: Raffel, Dr.-Ing.habil. Markus
Deposited On:19 Jul 2012 08:52
Last Modified:19 Jul 2012 08:52

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