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Application of Tomographic PIV on a Passage Vortex in a Transonic Compressor Cascade

Klinner, Joachim and Voges, Melanie and Willert, Christian (2013) Application of Tomographic PIV on a Passage Vortex in a Transonic Compressor Cascade. In: Tagungsband "Lasermethoden in der Strömungsmesstechnik 21. Fachtagung 2013" , 21, pp. 16-1. Lasermethoden in der Strömungsmesstechnik, 3.-5. Sept. 2013, München. ISBN 978-3-9805613-9-6 ISSN 2194-2447

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Official URL: http://www.gala-ev.org/muenchen2013.htm

Abstract

The contribution describes the implementation of thick sheet tomographic PIV [Elsinga et al. 2006] in a transonic cascade wind tunnel in order to measure the three dimensional turbulent corner flow in a highly loaded compressor cascade at M1 = 0.6. Under these operation conditions the secondary flow structures in the cascade are dominated by a passage vortex located at the base of the blade and near the suction side. The report describes various aspects of the adaption of the tomographic PIV setup to the restricted access on the cascade wind tunnel. A four camera setup is used to resolve a measuring volume of 36x24x4 mm from which a total of 54x74x13 vectors at a spacing of 0.64 mm in x (chord-wise direction) and a spacing of 0.32 mm in y and z could be recovered. Three dimensional reconstruction of the imaged particle volume is achieved with the maximum entropy reconstruction technique (MENT, [Minerbo, 1978; Bilsky et al.,2012]). The reconstruction quality of experimental data is documented by plots of the reconstructed intensity along volume depth. The extraction of three-dimensional displacement field relies on multi-resolution, 3-D correlation processing with iterative volume deformation. The recovered three-dimensional velocity fields are compared at selected planes with (thin-sheet) stereo PIV data.

Item URL in elib:https://elib.dlr.de/84106/
Document Type:Conference or Workshop Item (Speech)
Title:Application of Tomographic PIV on a Passage Vortex in a Transonic Compressor Cascade
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Klinner, Joachimjoachim.klinner (at) dlr.deUNSPECIFIED
Voges, Melaniemelanie.voges (at) dlr.deUNSPECIFIED
Willert, Christianchris.willert (at) dlr.deUNSPECIFIED
Date:3 September 2013
Journal or Publication Title:Tagungsband "Lasermethoden in der Strömungsmesstechnik 21. Fachtagung 2013"
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:21
Page Range:pp. 16-1
Editors:
EditorsEmail
Kähler, C.J.UNSPECIFIED
Hain, R.UNSPECIFIED
Cierpka, C.UNSPECIFIED
Ruck, B.UNSPECIFIED
Leder, AUNSPECIFIED
Dopheide, D.UNSPECIFIED
ISSN:2194-2447
ISBN:978-3-9805613-9-6
Status:Published
Keywords:Transonic Cascade wind tunnel, Tomographic PIV, Light sheet probe, MENT Transonic cascade wind tunnel, Tomographic PIV, Light sheet probe, MENT
Event Title:Lasermethoden in der Strömungsmesstechnik
Event Location:München
Event Type:national Conference
Event Dates:3.-5. Sept. 2013
Organizer:Deutsche Gesellschaft für Laser-Anemometrie GALA e.V.
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Propulsion Systems (old)
DLR - Research area:Aeronautics
DLR - Program:L ER - Engine Research
DLR - Research theme (Project):L - Virtual Engine and Validation Methods (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Propulsion Technology > Engine Measurement Systems
Deposited By: Klinner, Joachim
Deposited On:17 Sep 2013 13:06
Last Modified:08 May 2014 23:18

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