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Application of Tomographic PIV in a Transonic Cascade

Klinner, Joachim and Willert, Christian (2013) Application of Tomographic PIV in a Transonic Cascade. Workshop on Application of advanced flow diagnostics to aeronautics, 6.-7. Jan. 2013, Braunschweig.

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Abstract

The contribution describes the implementation of Tomographic PIV in order to measure the three dimensional corner flow in a highly loaded compressor cascade in a transonic cascade wind tunnel at Mach number M1=0.68. The flow is dominated by a corner vortex which is driven by the pitch-wise pressure gradient between pressure and suction side. The vortex causes a flow separation between the sidewall and the blade. Especially the high shear between the main passage flow and the corner vortex induces strong velocity fluctuations which are responsible for the majority of total pressure losses in a compressor cascade. Furthermore the corner separation leads to blockage effects which limit the mass flow capacity of the cascade.

Item URL in elib:https://elib.dlr.de/81166/
Document Type:Conference or Workshop Item (Speech)
Title:Application of Tomographic PIV in a Transonic Cascade
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Klinner, Joachimjoachim.klinner (at) dlr.deUNSPECIFIED
Willert, Christianchris.willert (at) dlr.deUNSPECIFIED
Date:6 January 2013
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Tomographic PIV, turbomachinery, aerodynamics, passage vortex
Event Title:Workshop on Application of advanced flow diagnostics to aeronautics
Event Location:Braunschweig
Event Type:international Conference
Event Dates:6.-7. Jan. 2013
Organizer:AFDAR Konsortium
HGF - Research field:Energy
HGF - Program:Efficient Energy Conversion and Use (old)
HGF - Program Themes:Power Plants (old)
DLR - Research area:Energy
DLR - Program:E VG - Combustion and Gas Turbine Technologies
DLR - Research theme (Project):E - Gasturbine (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Propulsion Technology > Engine Measurement Systems
Deposited By: Klinner, Joachim
Deposited On:18 Feb 2013 11:34
Last Modified:18 Feb 2013 11:34

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