Bauer, Christian und Wagner, Claus (2019) Analysis of the Energy Budget of the Largest Scales in Turbulent Pipe Flow. In: Springer Proceedings in Physics, 226, Seiten 113-118. Springer Science and Business Media, LLC. Interdisciplinary Turbulence Initiative (iTi 2018), 2018-09-05 - 2018-09-07, Bertinoro, Italien. doi: 10.1007/978-3-030-22196-6_18. ISBN 978-303022195-9. ISSN 0930-8989.
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Offizielle URL: https://doi.org/10.1007/978-3-030-22196-6_18
Kurzfassung
Very-large-scale motions (VLSM) in turbulent pipe flow become increasingly energetic with higher Reynolds numbers and contribute significantly to the turbulent kinetic energy budget. Although several investigations regarding energy mechanisms in wall-bounded turbulence were carried out in the past, the origin of the energy at the largest wavelengths has not been studied rigorously, yet. Consequently, we analysed the budget equation of the filtered streamwise velocity field with very large filter lengths to identify energy sources and sinks related to VLSM. While there was no inverse energy cascade found towards VLSM on average, conditional sampling revealed an inverse energy cascade related to low-speed structures, whereas high-speed structures were subject to a forward cascade. This behaviour is at odds with the mechanism relevant for the near-wall small-scale motions, where the inverse cascade correlates with high-speed fluid.
elib-URL des Eintrags: | https://elib.dlr.de/127562/ | ||||||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||
Zusätzliche Informationen: | Print ISBN 978-3-030-22195-9 Online ISBN 978-3-030-22196-6 | ||||||||||||||||||||
Titel: | Analysis of the Energy Budget of the Largest Scales in Turbulent Pipe Flow | ||||||||||||||||||||
Autoren: |
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Datum: | 28 August 2019 | ||||||||||||||||||||
Erschienen in: | Springer Proceedings in Physics | ||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||
Open Access: | Nein | ||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||
In SCOPUS: | Nein | ||||||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||||||
Band: | 226 | ||||||||||||||||||||
DOI: | 10.1007/978-3-030-22196-6_18 | ||||||||||||||||||||
Seitenbereich: | Seiten 113-118 | ||||||||||||||||||||
Herausgeber: |
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Verlag: | Springer Science and Business Media, LLC | ||||||||||||||||||||
Name der Reihe: | Progress in Turbulence VIII | ||||||||||||||||||||
ISSN: | 0930-8989 | ||||||||||||||||||||
ISBN: | 978-303022195-9 | ||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||
Stichwörter: | Turbulent Pipe Flow, DNS, Energy Flux, VLSM | ||||||||||||||||||||
Veranstaltungstitel: | Interdisciplinary Turbulence Initiative (iTi 2018) | ||||||||||||||||||||
Veranstaltungsort: | Bertinoro, Italien | ||||||||||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||
Veranstaltungsbeginn: | 5 September 2018 | ||||||||||||||||||||
Veranstaltungsende: | 7 September 2018 | ||||||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||
HGF - Programm: | Verkehr | ||||||||||||||||||||
HGF - Programmthema: | Schienenverkehr | ||||||||||||||||||||
DLR - Schwerpunkt: | Verkehr | ||||||||||||||||||||
DLR - Forschungsgebiet: | V SC Schienenverkehr | ||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | V - NGT BIT (alt) | ||||||||||||||||||||
Standort: | Göttingen | ||||||||||||||||||||
Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Bodengebundene Fahrzeuge | ||||||||||||||||||||
Hinterlegt von: | Bauer, Christian | ||||||||||||||||||||
Hinterlegt am: | 13 Nov 2019 18:36 | ||||||||||||||||||||
Letzte Änderung: | 24 Apr 2024 20:31 |
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