Weiss, Stephan und Schanz, Daniel und Erdogdu, Ahmed Oguzhan und Schröder, Andreas und Bosbach, Johannes (2022) Investigation of turbulent superstructures in Rayleigh-'enard convection by Lagrangian particle tracking of fluorescent microspheres. In: Proceeding of the 20th International Symposium on the Application of Laser and Imaging Techniques to Fluid Mechanics (212), Seiten 2334-2349. 20th International Symposium on Application of Laser and Imaging Techniques to Fluid Mechanics 2022, 2022-07-11 - 2022-07-14, Lissabon, Portugal. ISBN 978-989-53637-0-4.
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Kurzfassung
We present spatially and temporally resolved velocity and acceleration measurements of turbulent Rayleigh-B'enard convection (RBC) in fluid samples with large lateral aspect ratios of 8 and 16 at Pr =7 and Rayleigh-Numbers up to 1.3x10^7. Herewith, we applied the "Shake-The-Box" (STB) Lagrangian particle tracking (LPT) algorithm, which allowed us to simultaneously track more than 300,000 particles and hence to study the resulting turbulent structures in the Eulerian and Lagrangian frames. We focus our investigation on the morphology and the dynamics of the large scale pattern, i.e., the turbulent superstructure.
elib-URL des Eintrags: | https://elib.dlr.de/189398/ | ||||||||||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||||||
Titel: | Investigation of turbulent superstructures in Rayleigh-'enard convection by Lagrangian particle tracking of fluorescent microspheres | ||||||||||||||||||||||||
Autoren: |
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Datum: | Juli 2022 | ||||||||||||||||||||||||
Erschienen in: | Proceeding of the 20th International Symposium on the Application of Laser and Imaging Techniques to Fluid Mechanics | ||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||
Open Access: | Ja | ||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||
In SCOPUS: | Nein | ||||||||||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||||||||||
Seitenbereich: | Seiten 2334-2349 | ||||||||||||||||||||||||
Name der Reihe: | Conference Proceedings online | ||||||||||||||||||||||||
ISBN: | 978-989-53637-0-4 | ||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||
Stichwörter: | Rayleigh Benard Convection, Turbulence, Pattern Formation, Particle Tracking, Shake-The-Box, FLowFit | ||||||||||||||||||||||||
Veranstaltungstitel: | 20th International Symposium on Application of Laser and Imaging Techniques to Fluid Mechanics 2022 | ||||||||||||||||||||||||
Veranstaltungsort: | Lissabon, Portugal | ||||||||||||||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||||||
Veranstaltungsbeginn: | 11 Juli 2022 | ||||||||||||||||||||||||
Veranstaltungsende: | 14 Juli 2022 | ||||||||||||||||||||||||
Veranstalter : | IST, Lissabon, Portugal | ||||||||||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||
HGF - Programm: | Luftfahrt | ||||||||||||||||||||||||
HGF - Programmthema: | Effizientes Luftfahrzeug | ||||||||||||||||||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||||||||||
DLR - Forschungsgebiet: | L EV - Effizientes Luftfahrzeug | ||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - Virtuelles Flugzeug und Validierung | ||||||||||||||||||||||||
Standort: | Göttingen | ||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Experimentelle Verfahren, GO | ||||||||||||||||||||||||
Hinterlegt von: | Micknaus, Ilka | ||||||||||||||||||||||||
Hinterlegt am: | 13 Dez 2022 14:04 | ||||||||||||||||||||||||
Letzte Änderung: | 24 Apr 2024 20:50 |
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