Bed topography, bed shear stress distribution and velocity field in a confluence
水工学論文集 Volume 34
Page 307-312
published_at 1990-02
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| File | |
| Title ( eng ) |
Bed topography, bed shear stress distribution and velocity field in a confluence
|
| Creator |
Weerakoon S. B.
Tamai Nobuyuki
|
| Source Title |
水工学論文集
|
| Volume | 34 |
| Start Page | 307 |
| End Page | 312 |
| 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.
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| Keywords |
bed topography
bed shear stress
confluence
scour hole
secondary flow
|
| NDC |
Construction. Civil engineering [ 510 ]
|
| Language |
eng
|
| Resource Type | journal article |
| Publisher |
土木学会
|
| Date of Issued | 1990-02 |
| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0916-7374
[NCID] AN10426673
|
