Steady and unsteady turbulent velocity profiling in open channel flows using the ADV Vectrino II profiler

Leng, X. and Chanson, H. (2016). Steady and unsteady turbulent velocity profiling in open channel flows using the ADV Vectrino II profiler. In: Brian Crookston and Blake Tullis, Hydraulic Structures and Water System Management. 6th IAHR International Symposium on Hydraulic Structures. IAHR International Symposium on Hydraulic Structures, Portland, OR, United States, (305-314). 27-30 June 2016. doi:10.15142/T3620628160853

Attached Files (Some files may be inaccessible until you login with your UQ eSpace credentials)
Name Description MIMEType Size Downloads
UQ396519_OA.pdf Full text (open access) application/pdf 1.06MB 0

Author Leng, X.
Chanson, H.
Title of paper Steady and unsteady turbulent velocity profiling in open channel flows using the ADV Vectrino II profiler
Conference name IAHR International Symposium on Hydraulic Structures
Conference location Portland, OR, United States
Conference dates 27-30 June 2016
Proceedings title Hydraulic Structures and Water System Management. 6th IAHR International Symposium on Hydraulic Structures
Place of Publication Logan, UT, United States
Publisher Utah State University
Publication Year 2016
Sub-type Fully published paper
DOI 10.15142/T3620628160853
Open Access Status DOI
ISBN 9781884575754
Editor Brian Crookston
Blake Tullis
Start page 305
End page 314
Total pages 10
Collection year 2017
Language eng
Formatted Abstract/Summary
The Nortek Vectrino II profiler acoustic Doppler velocimeter (ADV) was developed for velocity profiling. Herein, the study
aims to 1) demonstrate the applicability of the ADV profiler to steady and rapidly-varied unsteady open channel flows, 2)
check the data quality, based upon a new systematically comparative analysis with traditional ADV data, and 3) conduct a
sensitivity analysis on ensemble-averaged data collection in a positive surge. This was achieved by systematically
performing steady and unsteady velocity measurements under controlled flow conditions in a relatively large laboratory
facility. All experiments were repeated 25 to 50 times for each controlled flow condition and the results were ensembleaveraged.
Steady and unsteady velocity measurements highlighted a number of instrumental errors using the ADV Profiler.
Overall, the study demonstrated that the propagation of positive surges was a highly unsteady turbulent process, and the
performance of ADV Profiler in such an unsteady turbulent flow could be satisfactory provided that careful validation was
undertaken for all ADV Profiler outputs.
Keyword ADV Profiler
Steady open channel flows
Positive surges
Unsteady turbulent flows
Instrumentation
Validation
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Conference Paper
Collections: School of Civil Engineering Publications
HERDC Pre-Audit
 
Versions
Version Filter Type
Citation counts: Google Scholar Search Google Scholar
Created: Tue, 19 Jul 2016, 06:45:46 EST by Hubert Chanson on behalf of School of Civil Engineering