Godbersen, Philipp und Schröder, Andreas (2020) Functional binning: improving convergence of Eulerian statistics from Lagrangian particle tracking. Measurement Science and Technology, 31 (09), Seiten 1-13. Institute of Physics (IOP) Publishing. doi: 10.1088/1361-6501/ab8b84. ISSN 0957-0233.
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Offizielle URL: https://doi.org/10.1088/1361-6501/ab8b84
Kurzfassung
In the analysis of Lagrangian particle tracking data, ensemble averaging with spatial bins is used to generate flow statistics. Due to the scattered nature of the particles over independent snapshots, the possible spatial resolution is directly dependent on the measured particle position accuracy and the amount of available data. This requires a balance between convergence of the underlying statistic and the bin resolution. Current binning approaches use the velocity information of the particle positions at single time steps directly and do not exploit the additional information available from the tracking process. We present a novel functional approach to the binning procedure that extracts all available information from the particle tracks and improves convergence speed. For a given experiment this allows for higher resolution of flow statistics than classical approaches or alternatively to reduce the necessary amount of data required for a given resolution. Furthermore, uncertainty measures from the particles position can be propagated directly by weighting coefficients.
elib-URL des Eintrags: | https://elib.dlr.de/135636/ | ||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||
Zusätzliche Informationen: | Article: 095304 | ||||||||||||
Titel: | Functional binning: improving convergence of Eulerian statistics from Lagrangian particle tracking | ||||||||||||
Autoren: |
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Datum: | September 2020 | ||||||||||||
Erschienen in: | Measurement Science and Technology | ||||||||||||
Referierte Publikation: | Ja | ||||||||||||
Open Access: | Ja | ||||||||||||
Gold Open Access: | Nein | ||||||||||||
In SCOPUS: | Ja | ||||||||||||
In ISI Web of Science: | Ja | ||||||||||||
Band: | 31 | ||||||||||||
DOI: | 10.1088/1361-6501/ab8b84 | ||||||||||||
Seitenbereich: | Seiten 1-13 | ||||||||||||
Herausgeber: |
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Verlag: | Institute of Physics (IOP) Publishing | ||||||||||||
ISSN: | 0957-0233 | ||||||||||||
Status: | veröffentlicht | ||||||||||||
Stichwörter: | spatial binning, ensemble averaging, turbulence statistics, Lagrangian particle tracking, Shake-the-Box | ||||||||||||
Institution: | Deutsches Zentrum für Luft- und Raumfahrt e.V. | ||||||||||||
Abteilung: | AS-EXV | ||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||
HGF - Programm: | Luftfahrt | ||||||||||||
HGF - Programmthema: | Flugzeuge | ||||||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||||||
DLR - Forschungsgebiet: | L AR - Aircraft Research | ||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - Simulation und Validierung (alt) | ||||||||||||
Standort: | Göttingen | ||||||||||||
Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Experimentelle Verfahren, GO | ||||||||||||
Hinterlegt von: | Micknaus, Ilka | ||||||||||||
Hinterlegt am: | 31 Jul 2020 10:42 | ||||||||||||
Letzte Änderung: | 24 Okt 2023 11:31 |
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