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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Water engineering : Analysis on characteristics of vortex flow around vertical groynes associated with various groyne sp...
Analysis on characteristics of vortex flow around vertical groynes associated with various groyne spacing using piv
Author : SEOJUN KIM (1), HYUNHYUK BYEON (2), JAEHOON YANG (3) & BYUNGMAN YOON (4)
Groyne which is one of eco-friendly river structures has been applied with great interest because attention of river environment has increased and nature river improvement techniques have been required for aquatic ecosystem restoration. Analysis for continuously variable flow characteristics around the groyne is necessary to consider eco-friendly facility like a fish habitat and shelter by installed groyne. However previous studies about continuously variable flow characteristics around groyne, therefore quantitative analysis is required. Especially, groyne filed of group groynes are
used for fish habitat under normal water level condition and fish shelter under flood water level. it is necessary to review continuous flow characteristics variation for vortex. Weitbrecht et al. (2008) studied experimentally the mass exchange of dissolved tracer between the main channel and floodplain groyne field using PIV. Peltier et al. (2009) and Baba et al.
(2010) studied the effect of single groyne on the flow characteristics and the experimental studies have been carried out using the LSPIV technique. Thus, the objectives of this study are to analyze depthwise plane velocity distribution around group groynes using PIV(Particle Image Velocimetry) in continuous flow and review quantitatively aspect of vortex generation. In this study, PIV is a non-intrusive measurement technique, which can be used to measure full field velocity data within a two-dimensional plane of a particle-seeded flow as shown in Figure 1.
File Size : 481,042 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Water engineering
Date Published : 01/10/2015
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