Control of Bed Erosion at 60° River Confluence Using Vanes and Piles

Wuppukondur, Ananth; Chandra, Venu

doi:10.1007/s40999-017-0147-1

Cited by 5 publications

(2 citation statements)

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“…In addition, the optimum angles of the vanes were taken as 15 • and 30 • . Optimum angles for vanes were recommended by Odgaard and Spoljaric [63], Barkdoll et al [64] and Wuppukondur and Chandra [38,39]. Furthermore, they reported that scour depth increases with an increase in vane angle, and the minimum scour depth is at angles of 15 • and 30 • .…”

Section: First Scenario: Single Row Of the Vanes With A Length Of 1 Mmentioning

confidence: 98%

“…Increasing the flow in the deposition zone lead to an increase in the velocity, thereby leading to the removal of a large portion of sediment from the bar that formed in the deposition zone. Two recent studies were conducted on a laboratory scale with 60 • and 90 • confluences [38,39], in which a set of vanes and piles were proposed to control bed erosion. The results of these studies show that the maximum percentage of reducing the scour depth is 55% and 43% with 90 • and 60 • confluences, respectively, through the use of a set of piles; the reduction is less than 10% from the above percentage when a set of vanes is used.…”

Section: Introductionmentioning

confidence: 99%

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Improving the Hydro-Morpho Dynamics of A River Confluence by Using Vanes

et al. 2019

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Controlling the flow and bed morphology in a river confluence is important in training and navigation works. The flow in river confluence is highly complex due to crucial and rapid changes associated with flow dynamics, sediment transport, and geomorphology. The flow in Malaysia’s rivers has many confluence junctions in natural drains of catchment areas. The confluence between Kurau and Ara Rivers, in Perak, Malaysia, is selected to investigate the scour hole that usually forms in the erosion zone and the bar that forms in the deposition zone. A 2D numerical model is used in simulating hydro-morpho dynamics in the rivers confluence to mitigate the erosion and deposition zones by adopting vanes as control structures. Simulation results suggest that the most effective location, dimension, and angle of vanes can be decided based on their performance in scouring and deposition zones. The distribution velocity and flow vectors can help in deciding the location of the vanes.

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