scholarly journals The Properties of Sediment Transport Mechanism in River Mouth of Rupat Strait

2020 ◽  
Author(s):  
Mubarak Mubarak ◽  
Rifardi Rifardi ◽  
Ahmad Nurhuda ◽  
Albert Sulaiman
Keyword(s):  
Sediment Transport ◽  
Transport Mechanism ◽  
High Tide ◽  
River Mouth ◽  
Ocean Current ◽  
Anthropogenic Factors ◽  
Explicit Method ◽  
Transport Modelling ◽  
Sediment Transport Modelling ◽  
Malacca Strait

The Rupat Strait, a part of the Malacca Strait, is recognized as semi-closed waters and shows a high activity; thus, discovering the transport sediment mechanism of the strait as a consequence of ambient and anthropogenic forces is essential. Hydrodynamic and sediment transport modelling was constructed using the 2-Dimensional Explicit method which is averaged over depth. The results show that the dispersion of sediment at high tide is longer than that at low tide. This follows the hydrodynamic model in which current velocity at high tide is greater than the ocean current at the low tide. The previous sediment observation supports the results of transport sediment modelling, indicating that the anthropogenic factors are highly associated with the sedimentation in the Rupat strait

Sediment transport modelling of the Drava River confluence

2020 ◽  
Author(s):  
Antonija Cikojević ◽  
Gordon Gilja ◽  
Sándor Baranya ◽  
Neven Kuspilić ◽  
Flóra Pomázi
Keyword(s):  
Sediment Transport ◽  
Numerical Model ◽  
Morphological Changes ◽  
River Mouth ◽  
Transport Modelling ◽  
River Confluence ◽  
Drava River ◽  
Sediment Transport Modelling ◽  
Transport Method

<p>Drava River confluence is characterized by specific morphodynamic processes under which significant sediment deposition is occurring at the Drava River mouth, impeding fairway conditions. Morphodynamic analysis requires long-term hydraulic and sediment transport regime data as input for estimation of equilibrium conditions, taking into account baseline conditions of both rivers. This paper presents results of detail investigations of morphodynamic changes at the Drava River confluence during the 2-year period. Quantification of morphodynamic processes is conducted indirectly through interpretation of ADCP transects surveyed over wider confluence zone, estimation of sediment transport intensity and bathymetric surveys. Purpose of the conducted analysis was to estimate morphodynamic development of the riverbed based on the 1D numerical model results. Numerical model is calibrated using flow velocity field and sediment transport pattern for range of hydrological events. Validation of sediment transport method is done through comparison of morphological changes on characteristic profiles between two consecutive surveys.</p>

scholarly journals On integrated sediment transport modelling for flash events in mountain environments

2011 ◽  
Vol 60 (1) ◽  
pp. 191-213 ◽  
Author(s):  
Alessio Radice ◽  
Elisa Giorgetti ◽  
Davide Brambilla ◽  
Laura Longoni ◽  
Monica Papini
Keyword(s):  
Sediment Transport ◽  
Transport Modelling ◽  
Mountain Environments ◽  
Sediment Transport Modelling

Coupled fluid dynamics-sediment transport modelling of a Crater Lake break-out lahar: Mt. Ruapehu, New Zealand

2010 ◽  
Vol 388 (3-4) ◽  
pp. 399-413 ◽  
Author(s):  
Jonathan L. Carrivick ◽  
Vern Manville ◽  
Alison Graettinger ◽  
Shane J. Cronin
Keyword(s):  
Fluid Dynamics ◽  
New Zealand ◽  
Sediment Transport ◽  
Crater Lake ◽  
Transport Modelling ◽  
Sediment Transport Modelling

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

2016 ◽  
Vol 154 ◽  
pp. 536-543 ◽  
Author(s):  
Elodie Zavattero ◽  
Mingxuan Du ◽  
Qiang Ma ◽  
Olivier Delestre ◽  
Philippe Gourbesville
Keyword(s):  
Sediment Transport ◽  
High Energy ◽  
Transport Modelling ◽  
Sediment Transport Modelling

scholarly journals One-dimensional sediment transport modelling with Engelund–Hansen and Ackers–White transport equations for the Lower Danube River

2021 ◽  
pp. 103-117
Author(s):  
Davor Kvočka
Keyword(s):  
Sediment Transport ◽  
Negative Impact ◽  
Statistical Tests ◽  
Field Measurements ◽  
River Basin Management ◽  
Transport Equations ◽  
Danube River ◽  
Transport Modelling ◽  
1D Modelling ◽  
Sediment Transport Modelling

Sediment transport can have a negative impact on riparian environments, as it can lead to the deterioration of ecological diversity and increase flood risks. Sediment transport modelling is thus a key tool in river basin management and the development of river training structures. In this study, we examined the appropriateness of 1D modelling for total sediment transport loads using the Engelund–Hansen and Ackers–White transport equations for the Lower Danube River. The study evaluated the effect of sediment grading on the accuracy of 1D model results, the appropriateness of 1D sediment transport modelling within technical or engineering projects, and the appropriateness of the Engelund–Hansen and Ackers–White equations for estimating sediment yield in the area of the Lower Danube River. The model results have been compared to field measurements, with the accuracy of the modelling results being evaluated with statistical tests. The obtained results show: (i) the sediment grading does not have a significant impact on the 1D modelling results, (ii) 1D sediment transport modelling gives sufficiently accurate results for practical engineering use (e.g. the estimation of dredging activities), and (iii) the Engelund–Hansen equation is generally better for sediment transport modelling in the Lower Danube River.

OpenMI-based integrated sediment transport modelling of the river Zenne, Belgium

2013 ◽  
Vol 47 ◽  
pp. 193-206 ◽  
Author(s):  
Narayan Kumar Shrestha ◽  
Olkeba Tolessa Leta ◽  
Bruno De Fraine ◽  
Ann van Griensven ◽  
Willy Bauwens
Keyword(s):  
Sediment Transport ◽  
Transport Modelling ◽  
Sediment Transport Modelling
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