Simulation of sand and mud transport processes in currents and waves by time-dependent 2DV model
This paper presents a time-dependent, two-dimensional vertical model for the simulation of sand and mud concentrations, transport and bed level changes in tidal conditions with or without surface waves. The model solves the advection-diffusion equation for suspended sediment. The horizontal velociti...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2025-02-01
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| Series: | International Journal of Sediment Research |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1001627924001252 |
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| author | Leo van Rijn Karel Meijer Kris Dumont Jan Fordeyn |
| author_facet | Leo van Rijn Karel Meijer Kris Dumont Jan Fordeyn |
| author_sort | Leo van Rijn |
| collection | DOAJ |
| description | This paper presents a time-dependent, two-dimensional vertical model for the simulation of sand and mud concentrations, transport and bed level changes in tidal conditions with or without surface waves. The model solves the advection-diffusion equation for suspended sediment. The horizontal velocities and the sediment mixing coefficients are modelled as function of x, z, and t. The settling velocity is constant or modelled as function of the sediment concentration. The sediment mixing coefficient over the water depth is described by flexible expressions based on current and wave parameters which can be modified easily in the input file. To represent mud flocculation and hindered settling processes, the settling velocity can be set as constant or concentration-dependent (input). The bed boundary condition is modelled as a bed concentration as function of the bed-shear stress. The model is valid for low and high sand and mud concentrations including fluid mud concentrations. The numerical SUSTIM2V-model is herein used to simulate sand and mud transport as measured in tidal waters. The model is also successfully used for simulation of high mud concentrations in the near-bed region as measured in the mouth of the Amazon River. The model has also been used to simulate scour along an offshore caisson-type foundation structure. |
| format | Article |
| id | doaj-art-2ce9b072adc745ca9f6ccdbf19ddb3e1 |
| institution | OA Journals |
| issn | 1001-6279 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | International Journal of Sediment Research |
| spelling | doaj-art-2ce9b072adc745ca9f6ccdbf19ddb3e12025-08-20T02:36:39ZengKeAi Communications Co., Ltd.International Journal of Sediment Research1001-62792025-02-0140111410.1016/j.ijsrc.2024.10.009Simulation of sand and mud transport processes in currents and waves by time-dependent 2DV modelLeo van Rijn0Karel Meijer1Kris Dumont2Jan Fordeyn3LVRS-Consultancy, Domineeswal 6, Blokzijl 8356DS, the Netherlands; Corresponding author.Meijer-TWD-Consultancy, Dwarsweg 13, Eesveen 8347WG, the NetherlandsJandeNul-Group, Tragel 60, Aalst 9808, BelgiumJandeNul-Group, Tragel 60, Aalst 9808, BelgiumThis paper presents a time-dependent, two-dimensional vertical model for the simulation of sand and mud concentrations, transport and bed level changes in tidal conditions with or without surface waves. The model solves the advection-diffusion equation for suspended sediment. The horizontal velocities and the sediment mixing coefficients are modelled as function of x, z, and t. The settling velocity is constant or modelled as function of the sediment concentration. The sediment mixing coefficient over the water depth is described by flexible expressions based on current and wave parameters which can be modified easily in the input file. To represent mud flocculation and hindered settling processes, the settling velocity can be set as constant or concentration-dependent (input). The bed boundary condition is modelled as a bed concentration as function of the bed-shear stress. The model is valid for low and high sand and mud concentrations including fluid mud concentrations. The numerical SUSTIM2V-model is herein used to simulate sand and mud transport as measured in tidal waters. The model is also successfully used for simulation of high mud concentrations in the near-bed region as measured in the mouth of the Amazon River. The model has also been used to simulate scour along an offshore caisson-type foundation structure.http://www.sciencedirect.com/science/article/pii/S1001627924001252Tidal sand-mud transportFluid mud transportChannel dredging predictionsErosion predictions |
| spellingShingle | Leo van Rijn Karel Meijer Kris Dumont Jan Fordeyn Simulation of sand and mud transport processes in currents and waves by time-dependent 2DV model International Journal of Sediment Research Tidal sand-mud transport Fluid mud transport Channel dredging predictions Erosion predictions |
| title | Simulation of sand and mud transport processes in currents and waves by time-dependent 2DV model |
| title_full | Simulation of sand and mud transport processes in currents and waves by time-dependent 2DV model |
| title_fullStr | Simulation of sand and mud transport processes in currents and waves by time-dependent 2DV model |
| title_full_unstemmed | Simulation of sand and mud transport processes in currents and waves by time-dependent 2DV model |
| title_short | Simulation of sand and mud transport processes in currents and waves by time-dependent 2DV model |
| title_sort | simulation of sand and mud transport processes in currents and waves by time dependent 2dv model |
| topic | Tidal sand-mud transport Fluid mud transport Channel dredging predictions Erosion predictions |
| url | http://www.sciencedirect.com/science/article/pii/S1001627924001252 |
| work_keys_str_mv | AT leovanrijn simulationofsandandmudtransportprocessesincurrentsandwavesbytimedependent2dvmodel AT karelmeijer simulationofsandandmudtransportprocessesincurrentsandwavesbytimedependent2dvmodel AT krisdumont simulationofsandandmudtransportprocessesincurrentsandwavesbytimedependent2dvmodel AT janfordeyn simulationofsandandmudtransportprocessesincurrentsandwavesbytimedependent2dvmodel |