Particle image velocimetry - an advanced experimental tool for the investigation of turbulent flow fields
Kompenhans, Jürgen and Kähler, Christian (2002) Particle image velocimetry - an advanced experimental tool for the investigation of turbulent flow fields. In: Engineering Turbulence Modelling and Experiments 5 Proceedings. Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, UK. pp. 79-94. ISBN 0-08-044114-9.
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For the characterization of turbulent flows it is often required to measure both, the temporal behavior of the velocity fluctuations along with their spectral contents and the spatial flow structure. Conventional point-wise measurement techniques such as hot-wire or laser Doppler velocimetry have been applied for a long time in order to obtain the temporal information at a single point. Since a few years the Particle Image Velocimetry (PIV) technique, which for the first time allows to measure instantaneous velocity vector maps, enables quantitative insight into the development of the spatial structures as well. It will be shown that by employing more complex multi-laser, multi-camera set-ups for PIV, it becomes possible to measure other relevant quantities required for the understanding of turbulent flows such as the complete velocity gradient tensor or the components of the spatio-temporal correlation tensor for example.
|Document Type:||Contribution to a Collection|
|Title:||Particle image velocimetry - an advanced experimental tool for the investigation of turbulent flow fields|
|Journal or Publication Title:||Engineering Turbulence Modelling and Experiments 5|
|In ISI Web of Science:||No|
|Page Range:||pp. 79-94|
|Publisher:||Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, UK|
|Keywords:||Particle image velocimetry (PIV), stereoscopic PIV (S-PIV), multi-plane stereoscopic PIV (MPS-PIV), near-wall turbulence, coherent structures, multipoint statistics|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||L - no assignement|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L AR - Aircraft Research|
|DLR - Research theme (Project):||L - Flight Physics|
|Institutes and Institutions:||Institute of Aerodynamics and Flow Technology > Experimental Methods|
|Deposited By:||elib DLR-Beauftragter|
|Deposited On:||31 Jan 2006|
|Last Modified:||14 Jan 2010 19:02|
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