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| Content Provider | Springer Nature Link |
|---|---|
| Author | Ellayn, Ashraf Fathy Sun, Zhi lin |
| Copyright Year | 2012 |
| Abstract | This laboratory study deals with the hydraulic jump properties for an artificially roughened bed with wedge-shaped baffle blocks. The experiments were conducted for both smooth and rough beds with a Froude number in the range of 3.06≤F $_{1}$≤10.95 and a relative bed roughness ranging 0.22≤K $_{R}$≤1.4. The data from this study were compared with those of rectangular baffle blocks. New experimental formulae were developed for determining the sequent depth ratio and the hydraulic jump length in terms of the inflow Froude number and relative bed roughness. Bélanger’s jump equation of a rectangular channel was extended to account for the implications of the bed shear stress coefficient attributable to channel bed roughness. It was found that, in comparison with the smooth bed, the wedge-shaped bed roughness reduced the sequent depth of the hydraulic jump by approximately 16.5% to 30% and the hydraulic jump length by approximately 30% to 53%. |
| Starting Page | 519 |
| Ending Page | 525 |
| Page Count | 7 |
| File Format | |
| ISSN | 1673565X |
| Journal | Journal of Zhejiang University SCIENCE A |
| Volume Number | 13 |
| Issue Number | 7 |
| e-ISSN | 18621775 |
| Language | English |
| Publisher | SP Zhejiang University Press |
| Publisher Date | 2012-07-04 |
| Publisher Place | Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Energy dissipater Hydraulic jump Stilling basins Wedge-shaped bed roughness Mechanical Engineering Industrial Chemistry/Chemical Engineering Civil Engineering Classical Continuum Physics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Engineering |
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