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The application of LS-PIV to a small irregular river for inbank and overbank flows

Gunawan, B.; Sun, X.; Sterling, M.; Shiono, K.; Tsubaki, R.; Rameshwaran, P.; Knight, D.W.; Chandler, J.H.; Tang, X.; Fujita, I.. 2012 The application of LS-PIV to a small irregular river for inbank and overbank flows. Flow Measurement and Instrumentation, 24. 1-12. 10.1016/j.flowmeasinst.2012.02.001

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Abstract/Summary

This paper examines the feasibility of applying a mobile, large scale particle image velocimetry (LS-PIV) system to a 300 m reach of a small river in order to estimate the discharge. Detailed velocity measurements at a number of locations were carried out using an acoustic Doppler current profiler (ADCP) and acoustic Doppler velocimetry (ADV) for inbank, bankfull and overbank flows. The lateral distributions of the velocity index k (i.e., the ratio of the depth-averaged velocity to the surface velocity) were found to be influenced by the secondary currents, channel vegetation and flow conditions. An attempt is made to quantify the relationship between secondary flow and the velocity index. Appropriate conclusions and advice relating to the practical use of a LS-PIV system as applied to a small river are given.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1016/j.flowmeasinst.2012.02.001
Programmes: CEH Topics & Objectives 2009 - 2012 > Water > WA Topic 2 - Ecohydrological Processes > WA - 2.1 - Identify and quantify sources, fluxes and pathways of water, chemicals ...
CEH Sections: Acreman
ISSN: 0955-5986
Additional Information. Not used in RCUK Gateway to Research.: The attached document is the author’s version of a work that was accepted for publication in Measurement and Instrumentation. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Flow Measurement and Instrumentation, 24. 1-12. 10.1016/j.flowmeasinst.2012.02.001 www.elsevier.com/ Article (refereed) - postprint Gunawan, B.; Sun, X.; Sterling, M.; Shiono, K.; Tsubaki, R.; Rameshwaran, P.; Knight, D.W.; Chandler, J.H.; Tang, X.; Fujita, I.. 2012 The application of LS-PIV to a small irregular river for inbank and overbank flows. Flow Measurement and Instrumentation, 24. 1-12. 10.1016/j.flowmeasinst.2012.02.001 Contact
Additional Keywords: large scale particle image velocimetry, acoustic Doppler current profiler, discharge estimation
NORA Subject Terms: Earth Sciences
Hydrology
Date made live: 01 Jun 2012 10:41
URI: http://nora.nerc.ac.uk/id/eprint/18232

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