Sediment Flushing at the Nakdong River Estuary Barrage

Ji, Un; Juliën, Pierre Y.; Park, S. K.

doi:10.1061/(asce)hy.1943-7900.0000395

Cited by 52 publications

(16 citation statements)

References 10 publications

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“…The barrage truncates the estuary at the coast with no remnant estuary against which comparisons may be made. The Lower Nakdong River in South Korea is barraged to prevent salt water intrusion, but sedimentation problems and constant dredging have necessitated changes to gate operation in a bid to increase sediment flushing (Ji et al, 2011). The Wansbeck barrage in Northumberland is opened for 3 days per month during October to March in an attempt to counteract sandbar formation across the mouth (Worrall and McIntyre, 2007).…”

Section: Introductionmentioning

confidence: 99%

A scenario-based approach to evaluating potential environmental impacts following a tidal barrage installation

Kidd

Fischer

Chai

et al. 2015

Ocean & Coastal Management

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Section: Introductionmentioning

confidence: 99%

A scenario-based approach to evaluating potential environmental impacts following a tidal barrage installation

Kidd

Fischer

Chai

et al. 2015

Ocean & Coastal Management

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“…),, 2014). Onedimensional and 2-D numerical models have been used by few researchers to investigate reservoir sedimentation and flushing (Ahn & Yang, 2010;Gallerano & Cannata, 2011;Ji, Julien, & Park, 2011;Mohammad, Al-Ansari, Issa, & Knutsson, 2016;Tarela & Menéndez, 1999;Zeleke, Moussa, & El-Manadely, 2013). Dutta and Sen (2016) applied the 2-D model, TELEMAC-2D, to predict the bed profiles at different cross sections of Hirakud Reservoir, India.…”

Section: Prediction Of Reservoir Sedimentationmentioning

confidence: 99%

Experimental and numerical simulations of the hydraulic flushing of reservoir sedimentation for planning and design of a hydropower project

Isaac

Eldho

2019

Lakes & Reservoirs

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Hydropower projects located on rivers transporting heavy sediment loads require design and operation criteria based on sediment management as a means of sustaining the project life. Sediment management is achieved by designing projects as a run‐of‐the‐river scheme, with provision for drawdown flushing, noting hydraulic model simulations are essential for optimizing the design of these projects. Sediment deposition levels are generally predicted with long‐term simulations using 1‐D numerical models, as well as experiments with scaled physical models that simulate drawdown flushing. The present study presents experiments with scaled model and 3‐D numerical model simulations conducted for hydraulic flushing of a reservoir. Experiments were conducted for various durations and discharges to finalize the intake alignment and optimize the flushing. The results of the 3‐D numerical model simulations are in agreement with the results of the experimental study (4%–6% variation). The results also indicate a combination of a 1‐D numerical model for sedimentation and a 3‐D numerical model for flushing can be effectively used to simulate the sedimentation and flushing of reservoirs during the planning and design stages.

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“…The research related on sediment flushing in the floodway and motion weir located at the mouth of the river or close to the waterfront has much done. Three of them were done by Ji et al (2011), Muntolib (2006), and Isnugroho (2008. By using numerical models, Ji et al (2011) analyzes the sediment flushing in rubber dam at the mouth of the Nakdong River, South Korea, at the time of the sea water at low tide conditions minimum.…”

Section: Literatur Reviewmentioning

confidence: 99%

Effectiveness of Sediment Flushing by Using By-Pass Flush Canal

Safanpo

Suripin

Hadihardaja

2016

JSDS

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The objective of this study was to analyze the effectiveness of sediment flushing system of BY PASSÂ channel with 1 door, 2 door and 3 door at a floodway. To determine which was the most effective, empiricalÂ model of effectiveness of each channel of sediment flushing were built. The object model of this study was theÂ Floodway Sedayu Lawas, located in Lamongan, East Java Province. This study uses Hydraulic Physical ModelÂ Test. Built and test the model conductedin the Laboratory of River, in Surakarta, Cental of Java. The variablesÂ of this study were sediment weight (W), water depth(H), sediment mass density (Ïs), sediment diameter (ds),Â waterflow rate (Q), and floodway wide (Bo)

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Sediment Flushing at the Nakdong River Estuary Barrage

Cited by 52 publications

References 10 publications

A scenario-based approach to evaluating potential environmental impacts following a tidal barrage installation

A scenario-based approach to evaluating potential environmental impacts following a tidal barrage installation

Experimental and numerical simulations of the hydraulic flushing of reservoir sedimentation for planning and design of a hydropower project

Effectiveness of Sediment Flushing by Using By-Pass Flush Canal

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