Gardner, Anthony und Eder, C. und Wolf, Christian und Raffel, Markus (2017) Analysis of differential infrared thermography for boundary layer transition detection. Experiments in Fluids, 58 (122), Seiten 1-14. Springer Nature. doi: 10.1007/s00348-017-2405-z. ISSN 0723-4864.
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Offizielle URL: https://doi.org/10.1007/s00348-017-2405-z
Kurzfassung
This paper presents an analysis of the differential infrared thermography (DIT) techn ique, a contactless method of measuring the unsteady movement of the boundary layer transition position on an unprepared surface. DIT has been shown to measure boundary layer positions which correlate weil with those from other measurement methods, and in this paper unsteady aerodynamics from a 2D URANS solution are used and the resulting wall temperatures computed. The results show that only the DIT peak can be anal ysed, but that this correlates weil with the boundary layer transition position. A small systematic time-lag of 1.5 ms cannot be reduced by using different surface materials, but the signal can be improved by using common plastics as a thin sheet on the surface.
elib-URL des Eintrags: | https://elib.dlr.de/111821/ | ||||||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||
Zusätzliche Informationen: | Published online: 18. August 2017; Exp Fluids (2017) 58:122 | ||||||||||||||||||||
Titel: | Analysis of differential infrared thermography for boundary layer transition detection | ||||||||||||||||||||
Autoren: |
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Datum: | 18 August 2017 | ||||||||||||||||||||
Erschienen in: | Experiments in Fluids | ||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||
Open Access: | Nein | ||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||||||
Band: | 58 | ||||||||||||||||||||
DOI: | 10.1007/s00348-017-2405-z | ||||||||||||||||||||
Seitenbereich: | Seiten 1-14 | ||||||||||||||||||||
Herausgeber: |
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Verlag: | Springer Nature | ||||||||||||||||||||
ISSN: | 0723-4864 | ||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||
Stichwörter: | DIT, Infrared, thermography, boundary layer, transition, unsteady flows, measurement technique, validation | ||||||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||
HGF - Programm: | Luftfahrt | ||||||||||||||||||||
HGF - Programmthema: | Hubschrauber | ||||||||||||||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||||||
DLR - Forschungsgebiet: | L RR - Rotorcraft Research | ||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - Der virtuelle Drehflügler (alt) | ||||||||||||||||||||
Standort: | Göttingen | ||||||||||||||||||||
Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Hubschrauber, GO | ||||||||||||||||||||
Hinterlegt von: | Bachmann, Barbara | ||||||||||||||||||||
Hinterlegt am: | 21 Nov 2017 10:28 | ||||||||||||||||||||
Letzte Änderung: | 02 Apr 2024 15:49 |
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