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Investigation of Unsteady Flow Fields in Wind Tunnels by Means of Particle Image Velocimetry

Kompenhans, J. and Raffel, M. and Willert, C. and Wiegel, M. and Kähler, C. and Schröder, A. and Bretthauer, B. and Vollmers, H. and Stasicki, B. (1997) Investigation of Unsteady Flow Fields in Wind Tunnels by Means of Particle Image Velocimetry. In: ERCOFTAC Buch: 3-D Velocity and Vorticity Measurement and Image Analysis 113-127. Kluwer Acad. Publ.. ISBN 0-7923-4256-9.

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Abstract

Particle Image Velocimetry (PIV) is increasingly used to investigate unsteady velocity fields instantaneously. For the first time the PIV technique allows the recording of a complete velocity field in a plane of the flow within microseconds. PIV provides information aboutunsteady flow fields which is difficult to obtain with other experimental techniques. It also helps to save operational time in the wind tunnel. At DLR a set up for PIV has been developed which can be operated under the rough environmental conditions (noise, vibrations) of a large industrial wind tunnel. This system has been successfully applied to very low speed as well as to high speed flows(Uc. 600 m/s). The evaluation and post-processing of the PIV recordings run fully automated on a workstation.

Document Type:Contribution to a Collection
Additional Information: LIDO-Berichtsjahr=1996,
Title:Investigation of Unsteady Flow Fields in Wind Tunnels by Means of Particle Image Velocimetry
Authors:
AuthorsInstitution or Email of Authors
Kompenhans, J.UNSPECIFIED
Raffel, M.UNSPECIFIED
Willert, C.UNSPECIFIED
Wiegel, M.UNSPECIFIED
Kähler, C.UNSPECIFIED
Schröder, A.UNSPECIFIED
Bretthauer, B.UNSPECIFIED
Vollmers, H.UNSPECIFIED
Stasicki, B.UNSPECIFIED
Date:1997
Journal or Publication Title:ERCOFTAC Buch: 3-D Velocity and Vorticity Measurement and Image Analysis
Refereed publication:Yes
In ISI Web of Science:No
Editors:
EditorsEmail
Ed. T. Dracos, UNSPECIFIED
Publisher:Kluwer Acad. Publ.
Series Name:113-127
ISBN:0-7923-4256-9
Status:Published
Keywords:Particle Image Velocimetry, Wind Tunnel, Flow Velocity Fields, Recording of PIV, Evaluation of PIV
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L SI - Versuchs- und Simulationstechniken
DLR - Research theme (Project):UNSPECIFIED
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Institut für Strömungsmechanik > Institut für Experimentelle Strömungsmechanik
Deposited By: elib DLR-Beauftragter
Deposited On:03 Apr 2006
Last Modified:27 Apr 2009 10:08

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