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Kähler, C. und Stanislas, M. und Eckelmann, H . (2001) Investigation of near wall Turbulence using Multiplane Stereo PIV. In: CD ROM Proceedings, Proceedings, 1-. 4th International Symposium on Particle Image Velocimetry, Göttingen, Germany, September 17-19, 2001.
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Kurzfassung
The joint probability density functions of the streamwise/wall-normal (uv) and streamwise/spanwise (uw) velocity fluctuations undergo a strong structual change in the near wall region of a fully developed turbulent boundary layer flow when approaching the wall. In order to understand the physics behind this experimental result, the spatio-temporal flow structure was investigated at several y locations, both simultaneously and separated in time, by means of multiplane stereo PIV. The size, shape and intensity of various coherent velocity structures could be determined from the spatio-temporal cross correlation functions after subdividing the flow field according to the quadrand splitting technique. Furthermore the convection velocity of the different coherent structures was measured
| Dokumentart: | Konferenzbeitrag (Paper) | ||||||||||||
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| Zusätzliche Informationen: | LIDO-Berichtsjahr=2003, monograph_id=DLR-Mitteilung 2001-03, | ||||||||||||
| Titel: | Investigation of near wall Turbulence using Multiplane Stereo PIV | ||||||||||||
| Autoren: |
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| Datum: | 2001 | ||||||||||||
| Erschienen in: | CD ROM Proceedings | ||||||||||||
| In Open Access: | Nein | ||||||||||||
| In SCOPUS: | Nein | ||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||
| Band: | Proceedings | ||||||||||||
| Seitenbereich: | 1- | ||||||||||||
| Herausgeber: |
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| Name der Reihe: | PIV'01 | ||||||||||||
| Status: | veröffentlicht | ||||||||||||
| Stichwörter: | Multiple plane stereo PIV, Turbulence, Coherent structures, Joint-PDF, spatio-temporal correlation functions | ||||||||||||
| Veranstaltungstitel: | 4th International Symposium on Particle Image Velocimetry, Göttingen, Germany, September 17-19, 2001 | ||||||||||||
| Veranstalter : | AS-EV | ||||||||||||
| HGF - Forschungsbereich: | Verkehr und Weltraum (alt) | ||||||||||||
| HGF - Programm: | Luftfahrt | ||||||||||||
| HGF - Programmthema: | keine Zuordnung | ||||||||||||
| DLR - Schwerpunkt: | Luftfahrt | ||||||||||||
| DLR - Forschungsgebiet: | L ST - Starrflüglertechnologien | ||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | L - Flugphysik (alt) | ||||||||||||
| Standort: | Köln-Porz , Braunschweig , Göttingen | ||||||||||||
| Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik | ||||||||||||
| Hinterlegt von: | Micknaus, Ilka | ||||||||||||
| Hinterlegt am: | 31 Jan 2006 | ||||||||||||
| Letzte Änderung: | 14 Jan 2010 19:15 |
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