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ID 16584
file
creator
Weerakoon, S. B.
Tamai, Nobuyuki
subject
bed topography
bed shear stress
confluence
scour hole
secondary flow
NDC
Construction. Civil engineering
abstract
Laboratory experiment in 60-degree confluence was conducted using wellgraded sand under active bedload condition for a discharge ratio of 0.6. The equilibrium channel bed was fixed and detailed measurements of mean flow were then carried out. Thereby, bed topography, two component velocity measurements, bed shear stress distribution and two counter rotating secondary flow cells are reported. Also. flow mechanism and bed morphology development in a confluence are explained. Bed shear stress maxima appear over the upward slopes along which bedload is transported away from the scour hole.
journal title
水工学論文集
volume
Volume 34
start page
307
end page
312
date of issued
1990-02
publisher
土木学会
issn
0916-7374
ncid
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
department
Graduate School of Engineering