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Niehaus, Konstantin A und Mommert, Michael und Schiepel, Daniel und Schmeling, Daniel und Wagner, Claus (2020) Comparison of two unstable flow states in turbulent mixed convection. In: 21st STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics, 142, Seiten 543-552. Springer Nature. 21. STAB/DGLR Symposium 2018, 2018-11-06 - 2018-11-07, Darmstadt, Deutschland. doi: 10.1007/978-3-030-25253-3_52. ISBN 978-3-030-25252-6. ISSN 1612-2909.
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Offizielle URL: https://doi.org/10.1007/978-3-030-25253-3_52
Kurzfassung
We present an experimental study focusing on the large- and small-scale structures in turbulent mixed convection. Measurements are conducted at stable conditions and during a reconfiguration event using temperature probes and triggered stereoscopic particle image velocimetry. It is found that the amplitude of the temperature distribution is higher for a state with three Large-Scale Circulations (LSC) than for a state with four LSCs. Furthermore, a correlation analysis of velocity fields measured during a reconfiguration process reveals the change of the dominant LSC mode. However, the mean spatial power distribution computed via a fast Fourier transformation reflects no changes in small-scale flow structures.
| elib-URL des Eintrags: | https://elib.dlr.de/120454/ | ||||||||||||||||||||||||||||
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| Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||||||||||
| Zusätzliche Informationen: | Print ISBN 978-3-030-25252-6 Online ISBN 978-3-030-25253-3 ISSN-electronic 1860-0824 | ||||||||||||||||||||||||||||
| Titel: | Comparison of two unstable flow states in turbulent mixed convection | ||||||||||||||||||||||||||||
| Autoren: |
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| Datum: | 2020 | ||||||||||||||||||||||||||||
| Erschienen in: | 21st STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics | ||||||||||||||||||||||||||||
| Referierte Publikation: | Ja | ||||||||||||||||||||||||||||
| Open Access: | Nein | ||||||||||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||||||||||
| In SCOPUS: | Ja | ||||||||||||||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||||||||||||||
| Band: | 142 | ||||||||||||||||||||||||||||
| DOI: | 10.1007/978-3-030-25253-3_52 | ||||||||||||||||||||||||||||
| Seitenbereich: | Seiten 543-552 | ||||||||||||||||||||||||||||
| Herausgeber: |
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| Verlag: | Springer Nature | ||||||||||||||||||||||||||||
| Name der Reihe: | Notes on Numerical Fluid Mechanics and Multidisciplinary Design | ||||||||||||||||||||||||||||
| ISSN: | 1612-2909 | ||||||||||||||||||||||||||||
| ISBN: | 978-3-030-25252-6 | ||||||||||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||||||||||
| Stichwörter: | mixed convection, generic passenger cabin ventilation, rayleigh-bernard convection, Stereo PIV, flow reconfiguration | ||||||||||||||||||||||||||||
| Veranstaltungstitel: | 21. STAB/DGLR Symposium 2018 | ||||||||||||||||||||||||||||
| Veranstaltungsort: | Darmstadt, Deutschland | ||||||||||||||||||||||||||||
| Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||||||||||
| Veranstaltungsbeginn: | 6 November 2018 | ||||||||||||||||||||||||||||
| Veranstaltungsende: | 7 November 2018 | ||||||||||||||||||||||||||||
| Veranstalter : | STAB/DGLR | ||||||||||||||||||||||||||||
| HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||||||
| HGF - Programm: | Verkehr | ||||||||||||||||||||||||||||
| HGF - Programmthema: | Bodengebundener Verkehr (alt) | ||||||||||||||||||||||||||||
| DLR - Schwerpunkt: | Verkehr | ||||||||||||||||||||||||||||
| DLR - Forschungsgebiet: | V BF - Bodengebundene Fahrzeuge | ||||||||||||||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | V - Next Generation Train III (alt) | ||||||||||||||||||||||||||||
| Standort: | Göttingen | ||||||||||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Bodengebundene Fahrzeuge | ||||||||||||||||||||||||||||
| Hinterlegt von: | Niehaus, Konstantin A | ||||||||||||||||||||||||||||
| Hinterlegt am: | 04 Dez 2018 12:15 | ||||||||||||||||||||||||||||
| Letzte Änderung: | 17 Feb 2025 14:32 |
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