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Analysis of Effects of Rough Strip Energy Dissipator on Hydraulic Property of Bend Flow.
- Source :
-
Geofluids . 10/7/2022, p1-23. 23p. 1 Color Photograph, 1 Illustration, 3 Diagrams, 1 Chart, 15 Graphs, 1 Map. - Publication Year :
- 2022
-
Abstract
- Installing rough strip energy dissipators (R-SEDs) at the bottom of curved spillways can facilitate energy dissipation and flow stabilization. In this study, the effects of R-SEDs set at the bottom of a 60° bend in a spillway were examined. This spillway had a large width-to-depth ratio (B / H > 5). Based on physical model tests, the distribution of hydraulic properties of the spillway under different runs was studied and analyzed. The results show that the R-SEDs effectively improved the flow pattern in the bend. The R-SEDs reduced the average dimensionless flow velocity by about 37.9% by increasing the roughness at the bottom of the bend. The energy dissipation rate of the R-SED decreased with an increase in discharge flow rate and ranged between 30% and 50%. These indicate that it is feasible to apply the R-SEDs to 60° bends of spillways with a large width-to-depth ratio at low-flow runs (the tested discharge flow rate = 15 L / s). These results will provide a theoretical basis for the R-SED design of similar curved spillways. [ABSTRACT FROM AUTHOR]
- Subjects :
- *SPILLWAYS
*FLOW velocity
*ENERGY dissipation
*SOIL permeability
Subjects
Details
- Language :
- English
- ISSN :
- 14688115
- Database :
- Academic Search Index
- Journal :
- Geofluids
- Publication Type :
- Academic Journal
- Accession number :
- 159695707
- Full Text :
- https://doi.org/10.1155/2022/4260540