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Recent applications of high-speed PIV measurements

Spehr, Carsten and Henning, Arne (2009) Recent applications of high-speed PIV measurements. MOTAR - Chater 1 meeting, 2009-03-30 - 2009-03-31, Toulouse, France.

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Abstract

Particle Image Velocimetry is a non-intrusive technique to measure the flow velocity in an extended region instantaneously. With the introduction of high speed cameras and high repetition-rate lasers the framing rate can be increased by several orders of magnitude compared to conventional PIV systems. For turbulent flows with moderate Reynolds numbers, the measurement frequency of such a PIV system can be as high as the Kolmogorov frequency in the investigated flow field. The influence of the interrogation window size on the measured frequency spectrum and therewith the statistical quantities are demonstrated for two simple flow cases. Furthermore an overview of recent applications of the so called High-Speed-PIV system to different flow configurations is given. It includes data achieved from an application of time-resolved tomographic PIV to a turbulent spot, the calibration of a velocity sensor of an acoustic p-u probe and the unsteady effects of a plasma actuator.

Document Type:Conference or Workshop Item (Speech)
Title:Recent applications of high-speed PIV measurements
Authors:
AuthorsInstitution or Email of Authors
Spehr, CarstenUNSPECIFIED
Henning, ArneUNSPECIFIED
Date:2009
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Series Name:CD-ROM Conference Proceedings
Status:Published
Keywords:High Speed PIV, time-resolved tomographic PIV, calibration of velocity sensor
Event Title:MOTAR - Chater 1 meeting
Event Location:Toulouse, France
Event Type:international Conference
Event Dates:2009-03-30 - 2009-03-31
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Experimental Methods
Deposited By: Ilka Micknaus
Deposited On:13 Jul 2009 11:58
Last Modified:27 Apr 2010 09:34

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