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- W4383460796 abstract "Stilling basins are designed to reduce the high kinetic energy of supercritical flow in a downstream spillway. The USBR II stilling basin is distinguished by chute blocks fixed at the upstream end and a dented sill at the downstream end, allowing for the effective dissipation of excess energy. This research investigates the effect of chute-block geometry on the hydraulic performance of the USBR II stilling basin. Six modified chute-blocks with identical dimensions and spacings as standard blocks were constructed and evaluated for six incoming Froude-number values. The results indicate that chute blocks containing stepped side walls are more effective than standard blocks, increasing energy dissipation by 1.47% and decreasing the sequent depth ratio by 3.91%. Blocks with gradually increased spacings lose 0.7% more energy than standard blocks and reduce the sequential depth ratio by 1.91%. However, blocks with prismatic spacings and top surface angles of 152 degrees, relative to the downstream slope of the spillway, are less effective than standard blocks with energy dissipation reduced by 2.73% and the depth ratio increased by 7.24%." @default.
- W4383460796 created "2023-07-07" @default.
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- W4383460796 date "2023-07-10" @default.
- W4383460796 modified "2023-09-23" @default.
- W4383460796 title "Effects of Chute Block Geometry on the Performance of the USBR II Stilling Basin" @default.
- W4383460796 doi "https://doi.org/10.14525/jjce.v17i3.12" @default.
- W4383460796 hasPublicationYear "2023" @default.
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