Article (Scientific journals)
Vectrino Profiler Spatial Filtering for Shear Flows Based on the Mean Velocity Gradient Equation
Valero Huerta, Daniel; Bung, Daniel B.
2018In Journal of Hydraulic Engineering, 144 (7), p. 04018037
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Keywords :
Acoustic Doppler velocimetry; Data filtering; Instrumentation; Turbulence; Vectrino profiler; Velocity correction; Velocity measurement
Abstract :
[en] 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.
Research center :
UEE - Urban and Environmental Engineering - ULiège
Disciplines :
Civil engineering
Author, co-author :
Valero Huerta, Daniel ;  Université de Liège - ULiège > Form. doct. sc. ingé. & techn. (archi., gén. civ. - paysage)
Bung, Daniel B.;  FH Aachen > Hydraulic Engineering Section
Language :
English
Title :
Vectrino Profiler Spatial Filtering for Shear Flows Based on the Mean Velocity Gradient Equation
Publication date :
July 2018
Journal title :
Journal of Hydraulic Engineering
ISSN :
0733-9429
Publisher :
American Society of Civil Engineers, United States - New York
Volume :
144
Issue :
7
Pages :
04018037
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 05 June 2018

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