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Application potential of Doppler global velocimetry in compressible flows

Willert, Christian and Stockhausen, Guido and Schodl, Richard and Beversdorff, Manfred and Klinner, Joachim (2005) Application potential of Doppler global velocimetry in compressible flows. PIVNET II International Workshop on the Application of PIV in Compressible Flows, 2005-06-06 - 2005-06-07, Delft (The Netherlands).

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Abstract

Doppler global velocimetry (DGV) provides planar three-component velocity data at a high spatial resolution. As an intensity-based technique there is no need to resolve the light-sheet illuminated particles directly and therefore is a viable alternative to PIV in applications with difficult optical access. Two recent applications of DGV in compressible flows are selected to give an impression of the technique’s current state-of-the-art. The flow field downstream of winglet devices was measured in the transonic cryogenic flow of the ETW at pressures up to 3.8 bar and free stream Mach numbers up to 0.88. The second example describes the use of DGV for flow studies inside a motored piston engine operating at 3000 rpm. In both cases fiber-based illumination and endoscope imaging was utilized to gain optical access to the area of interest.

Document Type:Conference or Workshop Item (Paper)
Title:Application potential of Doppler global velocimetry in compressible flows
Authors:
AuthorsInstitution or Email of Authors
Willert, ChristianUNSPECIFIED
Stockhausen, GuidoUNSPECIFIED
Schodl, RichardUNSPECIFIED
Beversdorff, ManfredUNSPECIFIED
Klinner, JoachimUNSPECIFIED
Date:June 2005
Refereed publication:No
In ISI Web of Science:No
Status:Published
Keywords:particle image velocimetry, planar Doppler velocimetry, DGV, PIV, cryogenic flow, wake vortex, MDAW, piston engine
Event Title:PIVNET II International Workshop on the Application of PIV in Compressible Flows
Event Location:Delft (The Netherlands)
Event Type:international Conference
Event Dates:2005-06-06 - 2005-06-07
Organizer:Aerospace Engineering, TU-Delft
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: Dr.phil. Christian Willert
Deposited On:06 Feb 2006
Last Modified:12 Dec 2013 20:09

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