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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) | ||||||||
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| Title: | Pulsed, high-power LED volume illumination for tomographic particle image velocimetry | ||||||||
| Authors: |
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| 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: | L ER - Engine Research | ||||||||
| 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: | 27 Aug 2012 08:56 |
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