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ID 14822
file
title alternative
Flow visualization of flow around an oblique weir in a compound open channel
creator
松下 健一郎
subject
oblique weir
compound channel
flood flow
dye injection
oil film
NDC
Construction. Civil engineering
abstract
Experimental results on flow characteristics around oblique weirs in a compound open channel are presented with the emphasis on the effects of weir angle to the main channel and weir shape on flow pattern. Flow visualization is carried out using dye injection and oil film methods together with the measurement of three mean velocity components and water depth. With the increase of the weir angle, flow in the main channel tends to move toward the flood plain in the upstream side of the weir, while flow over the weir is apt to attack the main channel side. Strong upward currents move around the weir on the flood plain with shallow water depth, resulting in an oblique hydraulic jump on the flood plain. A large recirculation zone is generated in the main channel at the downstream side of the weir.
journal title
可視化情報学会誌
volume
Volume 24
issue
Issue Suppl.2
start page
173
end page
174
date of issued
2004
publisher
可視化情報学会
issn
0916-4731
ncid
language
jpn
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
department
Graduate School of Engineering