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

journal contribution
posted on 20.12.2012, 11:39 by B. Gunawan, Xin Sun, M. Sterling, Koji Shiono, R. Tsubaki, Ponnambalam Rameshwaran, D.W. Knight, Jim Chandler, X. Tang, I. Fujita
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.

History

School

  • Architecture, Building and Civil Engineering

Citation

GUNAWAN, B. ... et al., 2012. The application of LS-PIV to a small irregular river for inbank and overbank flows. Flow Measurement and Instrumentation, 24, pp. 1 - 12.

Publisher

© Elsevier

Version

VoR (Version of Record)

Publication date

2012

Notes

Closed Access. This article was published in the journal, Flow Measurement and Instrumentation [© Elsevier Ltd.] and the definitive version is available at: http://dx.doi.org/10.1016/j.flowmeasinst.2012.02.001

ISSN

0955-5986

Language

en