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RESEARCH PRODUCT
Stage–Discharge Relationship for an Upstream Inclined Grid with Transversal Bars
Vito FerroC. Di Stefanosubject
010504 meteorology & atmospheric sciencesSelf-similarity0208 environmental biotechnologyGeometryAstrophysics::Cosmology and Extragalactic Astrophysics02 engineering and technologyGrid01 natural sciencesAgricultural and Biological Sciences (miscellaneous)020801 environmental engineeringDebris flowTransversal (combinatorics)Upstream (networking)OutflowGeotechnical engineeringStage (hydrology)Sediment transportGeology0105 earth and related environmental sciencesWater Science and TechnologyCivil and Structural Engineeringdescription
AbstractCheck dams with grids upgrading upstream are often used in mountain rivers, where intense sediment transport and steep slopes occur. In some cases, sloping grids are used in the construction of debris flow breakers. In this paper, the outflow process of an upstream-inclined grid with transversal bars is studied by using the dimensional analysis and the incomplete self-similarity theory. Next, the theoretical analysis shows that a power equation can be used for establishing the stage-discharge equation. The coefficient of the power equation depends on both the slope angle and the void ratio, whereas the exponent depends only on the slope angle. Finally, this deduced stage–discharge relationship is tested by laboratory measurements obtained using a sloping grid with transversal bars having different values of the slope angle and the void ratio.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-02-01 | Journal of Irrigation and Drainage Engineering |