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On the transition of PIV into the digital age: Recounting 20 years of digital PIV

Willert, Christian (2009) On the transition of PIV into the digital age: Recounting 20 years of digital PIV. Symposium 25 Years of PIV in Aerodynamics, 23.-25. Sep. 2009, Göttingen.

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Official URL: http://25-years-piv.dlr.de/wiki/

Abstract

Early 1989 the first image sequences of single exposed particle images were acquired for a low speed water flow and for the first time demonstrated the double-frame, single-exposure PIV recording and processing concept, that was to become the most common implementation of PIV up until today. The presentation provides a historical perspective of the development of digital PIV in the presence of the then already well established photographic PIV methods. Initially the implementation of the two techniques seemed to be almost contradictory, but a steady improvement of the theoretical background during the 1990's clarified that the two techniques are merely different implementations of the same measurement principle. Digital processing of photographic PIV recordings became possible with the emergence of slide scanners which ultimately replaced the optical interrogation methods. Soon thereafter new camera technology based on interline-transfer CCD sensors allowed the capture of two separate images on the microsecond scale and for the first time provided reliable digital PIV measurements of high speed flows in aerodynamics. A continual growth in sensor resolution nowadays provides a spatial resolution that rivals that of high-resolution 35 mm photographic film.

Document Type:Conference or Workshop Item (Speech)
Title:On the transition of PIV into the digital age: Recounting 20 years of digital PIV
Authors:
AuthorsInstitution or Email of Authors
Willert, Christianchris.willert@dlr.de
Date:23 September 2009
Refereed publication:No
In ISI Web of Science:No
Series Name:Book of Abstracts
Status:Published
Keywords:particle image velocimetry, history of PIV, digital image processing, flow measurement, imaging methods, flow visualization, PIV, DPIV
Event Title:Symposium 25 Years of PIV in Aerodynamics
Event Location:Göttingen
Event Type:international Conference
Event Dates:23.-25. Sep. 2009
Organizer:DLR-Göttingen
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
Institute of Propulsion Technology > Engine Measurement Systems
Deposited By: Dr.phil. Christian Willert
Deposited On:15 Mar 2010 15:31
Last Modified:12 Dec 2013 20:55

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