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Vectrino profiler spatial filtering for shear flows based on the mean velocity gradient equation

  • A new methodology is proposed to spatially filter acoustic Doppler velocimetry data from a Vectrino profiler based on the differential mean velocity equation. Lower and upper bounds are formulated in terms of physically based flow constraints. Practical implementation is discussed, and its application is tested against data gathered from an open-channel flow over a stepped macroroughness surface. The method has proven to detect outliers occurring all over the distance range sampled by the Vectrino profiler and has shown to remain applicable out of the region of validity of the velocity gradient equation. Finally, a statistical analysis suggests that physically obtained bounds are asymptotically representative.

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Metadaten
Author:Daniel ValeroORCiD, Daniel B. BungORCiD
DOI:https://doi.org/10.1061/(ASCE)HY.1943-7900.0001485
ISSN:0733-9429
Parent Title (English):Journal of Hydraulic Engineering
Publisher:ASCE
Place of publication:Reston, Va.
Document Type:Article
Language:English
Year of Completion:2018
Date of the Publication (Server):2018/06/26
Volume:144
Issue:7
Note:
Article number 04018037
Link:https://doi.org/10.1061/(ASCE)HY.1943-7900.0001485
Zugriffsart:bezahl
Institutes:FH Aachen / Fachbereich Bauingenieurwesen
collections:Verlag / ASCE