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Willert, Christian und Mößner, Steffen und Klinner, Joachim (2009) Pulsed operation of high power light emitting diodes for flow velocimetry. 8th Internation Symposium on Particle Image Velocimetry (PIV09), 2009-08-25 - 2009-08-28, Melbourne, Australia. (im Druck)
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Kurzfassung
High powered light emitting diodes (LED) are investigated for possible uses as light sources in flow diagnostics, in particular, as an alternative to laser-based illumination in particle imaging flow velocimetry. Recent developments in solid state illumination resulted in mass-produced LEDs that provide average radiant power in excess of 10 Watt. By operating these LEDs with short duration, pulsed currents that are considerably beyond their continuous current damage threshold, light pulses can be generated that are sufficient to the illuminate and image micron sized particles in flow velocimetry. Kilohertz frame rate PIV measurements in water are presented. The feasibility of LED-based PIV measurements in air is also demonstrated.
| elib-URL des Eintrags: | https://elib.dlr.de/59034/ | ||||||||||||||||
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| Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||
| Titel: | Pulsed operation of high power light emitting diodes for flow velocimetry | ||||||||||||||||
| Autoren: |
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| Datum: | 25 August 2009 | ||||||||||||||||
| Referierte Publikation: | Ja | ||||||||||||||||
| Open Access: | Ja | ||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||
| In SCOPUS: | Nein | ||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||
| Status: | im Druck | ||||||||||||||||
| Stichwörter: | flow diagnostics, image based velocimetry, time-resolved PIV | ||||||||||||||||
| Veranstaltungstitel: | 8th Internation Symposium on Particle Image Velocimetry (PIV09) | ||||||||||||||||
| Veranstaltungsort: | Melbourne, Australia | ||||||||||||||||
| Veranstaltungsart: | Konferenz | ||||||||||||||||
| Veranstaltungsbeginn: | 25 August 2009 | ||||||||||||||||
| Veranstaltungsende: | 28 August 2009 | ||||||||||||||||
| Veranstalter : | Monash University | ||||||||||||||||
| HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||
| HGF - Programm: | Luftfahrt | ||||||||||||||||
| HGF - Programmthema: | Antriebe (alt) | ||||||||||||||||
| DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||
| DLR - Forschungsgebiet: | L ER - Antriebsforschung | ||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | L - Virtuelles Triebwerk und Validierungsmethoden (alt) | ||||||||||||||||
| Standort: | Köln-Porz | ||||||||||||||||
| Institute & Einrichtungen: | Institut für Antriebstechnik Institut für Antriebstechnik > Triebwerksmesstechnik | ||||||||||||||||
| Hinterlegt von: | Willert, Dr.phil. Christian | ||||||||||||||||
| Hinterlegt am: | 19 Okt 2009 09:33 | ||||||||||||||||
| Letzte Änderung: | 24 Apr 2024 19:23 |
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