2D Sediment Transport Modelling in High Energy River – Application to Var River, France

Zavattero, Elodie; Du, Muqing; Delestre, Olivier; Gourbesville, Philippe

doi:10.1016/j.proeng.2016.07.549

Cited by 21 publications

(4 citation statements)

References 9 publications

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“…175 km 2 . This counts as higher than the average, as e.g., in [42,43] sediment transport was simulated on approximately an order of magnitude smaller domains. On the other hand, in [44] there were a larger domain but also larger and thus fewer computation cells.…”

Section: Resultsmentioning

confidence: 75%

Validating a Two-dimensional Sediment Transport Model on a Large Danubian Floodplain

Füstös,

Baranya,

Kutassy

et al. 2024

Period. Polytech. Civil Eng.

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Considering currently operative European and worldwide regulations, preserving and/or improving the state of remnant alluvial floodplains is a high-priority goal for experts. One of the threats is the decrease of lateral connectivity: due to the erosion in the mainstem riverbed and the sedimentation of the floodplain and its channels, the bed elevation gap slowly increases between the main channel and the side branches and oxbows of the floodplain. Without revitalization measures, this progress predicts severe ecological consequences. As an example, and as a continuation of our earlier work, we considered the Gemenc floodplain forest along the Danube, in Hungary. We set up a two-dimensional coupled hydrodynamic and sediment transport computational model to describe floodplain deposition dynamics. Model validation was carried out with historical data, i.e., two ground elevation sets measured in 1990 and in 2009, respectively. Our aim was 1. to show, how coarse resolution measured data can be used for validating a large-scale model in terms of sediment deposition processes, and 2. to interpret the first results on some areas exposed to strong deposition, after validation. Showing good agreements in three pillars: magnitude of estimation, spatial tendencies and spatial patterns, the model was deemed valid. We were also able to observe a clear gradient, along which areas could be categorized with high, medium and small extent of sediment deposition. With this model, the sediment dynamics in the Gemenc floodplain forest can be assessed, with special attention to the impact analysis of restoration measures to improve lateral connectivity conditions.

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Section: Resultsmentioning

confidence: 75%

Validating a Two-dimensional Sediment Transport Model on a Large Danubian Floodplain

Füstös,

Baranya,

Kutassy

et al. 2024

Period. Polytech. Civil Eng.

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“…The sediment transport computation is based on hydrodynamics conditions and sediment properties [19]. The sediment type was non-cohesive, with typical properties of quartz sand (mean grain diameter equal to 0.2 mm, and specific gravity equal to 2.65).…”

Section: Model Applicationmentioning

confidence: 99%

“…The second one is characterized by a phase-lag in the transport compared to the flow. Modelling of non-cohesive suspended sediment in a fluid can be described by a transport equation for the volumetric sediment concentration [19]. The Engelund and Hansen [8] total-load transport theory is implemented, while the Meyer-Peter and Muller [15] formula is applied for the calculation of the non-dimensional bed load parameter Φ b (referred by DHI, [7]).…”

Section: Model Applicationmentioning

confidence: 99%

Wind and Tide-Induced Hydrodynamics and Sedimentation of Two Tidal Inlets in Western Greece

Fourniotis

Horsch

Leftheriotis

2018

Period. Polytech. Civil Eng.

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“…In Addition, the process of sediment transport has an important role in determining environmental conditions in coastal areas with various human interests, such as harbor areas [3,4]. The coastal area is typically characterized by complicated interactions between subsurface resources, rivers, and the sea [5,6].…”

Section: Introductionmentioning

confidence: 99%

2-dimensional modeling of sediment transport around the Berok River Estuary

Hambali

Asiah

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Berok River is one of the small scales of fishing activities in Central Bangka Regency for mooring boats and loading-unloading activities. The flow of entry and exit for fishing boats at the mouth of the Berok River often experience problems, where the channel becomes shallow due to sedimentation. The behaviour of sediment transport in river mouths is influenced by hydro-oceanographic conditions such as river discharge, current velocity, tides, and geographical conditions. This study aims to determine the characteristics of sediment transport around the Berok River estuary through 2-dimensional numerical modeling. The modeling is conducted using MIKE21 software for the existing conditions and the condition with groynes structure. Two modules are used in MIKE21, namely the Flow Model Flexible Mesh (FM) and the Mud Transport (MT) module. The data used in the sediment transport modeling include tides, bathymetry, wind, and sediment properties. The simulation results show the average sedimentation that occurs around the Berok River estuary is about 0.6 m/year, and the average erosion is about -0.3 m/year. With the groynes structure on the left and right of the river mouth, the average sedimentation rate that occurs is reduced to 0.39 m/year and the average erosion is -0.1 m/year.

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2D Sediment Transport Modelling in High Energy River – Application to Var River, France

Cited by 21 publications

References 9 publications

Validating a Two-dimensional Sediment Transport Model on a Large Danubian Floodplain

Validating a Two-dimensional Sediment Transport Model on a Large Danubian Floodplain

Wind and Tide-Induced Hydrodynamics and Sedimentation of Two Tidal Inlets in Western Greece

2-dimensional modeling of sediment transport around the Berok River Estuary

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