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Pulsed, high-power LED volume illumination for tomographic particle image velocimetry

Buchmann, Nicolas A. and Willert, Christian and Soria, Julio (2010) Pulsed, high-power LED volume illumination for tomographic particle image velocimetry. 17th Australasian Fluid Mechanics Conference (AFMC), 05.-09. Dez. 2010, Auckland, New Zealand.

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Official URL: http://www.17afmc.com

Abstract

This paper investigates the use of high-power light emitting diode (LED) illumination in Particle Image Velocimetry (PIV) as an alternative to traditional laser-based illumination. The solid-state LED devices can provide averaged radiant power in excess of 10W and by operating them with short current pulses, considerably higher than in continuos operation, light pulses of sufficient energy suitable for imaging micron-sized particles can be generated. The feasibility of this LED-based illumination for tomographic PIV is demonstrated in this paper by measuring grid-generated turbulence and a cylinder wake flow. Also, the use of LED illumination in time-resolved measurements is discussed.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Pulsed, high-power LED volume illumination for tomographic particle image velocimetry
Authors:
AuthorsInstitution or Email of Authors
Buchmann, Nicolas A.Monash University
Willert, Christianchris.willert@dlr.de
Soria, JulioMonash University
Date:December 2010
Refereed publication:Yes
In ISI Web of Science:No
Status:Published
Keywords:particle image velocimetry, pulsed light source, flow diagnostics, volume resolving measurement techniques, light emitting diode, LED, PIV, tomo-PIV
Event Title:17th Australasian Fluid Mechanics Conference (AFMC)
Event Location:Auckland, New Zealand
Event Type:international Conference
Event Dates:05.-09. Dez. 2010
Organizer:University of Auckland, Faculty of Engineering
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:16 Dec 2010 14:30
Last Modified:12 Dec 2013 21:08

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