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Tomographic 3D(t) PIV and recent applications

Schröder, Andreas and Geisler, Reinhard and Elsinga, Gerrit and Scarano, Fulvio and Wieneke, Bernd (2008) Tomographic 3D(t) PIV and recent applications. EWA International workshop on Advanced Measurement Techniques in Aerodynamics, 2008-03-31 - 2008-04-01, Delft (The Netherlands).

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Official URL: http://www.aero.lr.tudelft.nl/~conf08


Tomographic Particle Image Velocimetry is a 3D PIV technique based on the illumination, recording, reconstruction and analysis of tracer particle displacements within a three-dimensional measurement volume in a flow. The technique makes use of several simultaneous views of the illuminated particles, typically four, and their three-dimensional reconstruction as a light intensity distribution by means of optical tomography. The reconstruction is performed with the MART algorithm (multiplicative algebraic reconstruction technique), yielding a 3D distribution of light intensity discretized over an array of voxels. The reconstructed tomogram pair is then analyzed by means of 3D cross-correlation with an iterative multigrid volume deformation technique, returning the three-component velocity vector distribution over the measurement volume. The implementation of the tomographic technique in time-resolved mode by means of high-repetition rate PIV hardware has the capability to yield 4D velocity information. As a result the fully (time-dependent) instantaneous velocity gradient tensor is available.

Item URL in elib:https://elib.dlr.de/53813/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Tomographic 3D(t) PIV and recent applications
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Elsinga, GerritTU-Delft, Delft, NLUNSPECIFIED
Scarano, FulvioTU-Delft, Delft, NLUNSPECIFIED
Wieneke, BerndLaVision, Göttingen, DUNSPECIFIED
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Volume:Book of Abstracts
Page Range:pp. 1-4
Series Name:Conference Proceedings
Keywords:Tomographic Particle Image Velocimetry
Event Title:EWA International workshop on Advanced Measurement Techniques in Aerodynamics
Event Location:Delft (The Netherlands)
Event Type:international Conference
Event Dates:2008-03-31 - 2008-04-01
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Experimental Methods
Deposited By: Micknaus, Ilka
Deposited On:11 Jun 2008
Last Modified:27 Apr 2009 14:53

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