气候变化领域集成服务门户(CCPortal): A robust model for rapidly varying flows over movable bottom with suspended and bedload transport: Modelling and numerical approach

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DOI	10.1016/j.advwatres.2020.103575
	A robust model for rapidly varying flows over movable bottom with suspended and bedload transport: Modelling and numerical approach
	González-Aguirre J.C.; Castro M.J.; Morales de Luna T.
发表日期	2020
ISSN	0309-1708
卷号	140
英文摘要	We propose a coupled model for suspended and bedload sediment transport in the shallow water framework. The model is deduced under hydrostatic pressure assumptions and will not assume any Boussinesq hypothesis. The numerical resolution is carried out in a segregated way. First the underlying system of conservation laws is solved by using a first order path-conservative Riemann solver. Then, the source terms corresponding with the erosion and depositions rates are approximated in a semi-implicit way. The final scheme preserves the positivity of the density. Several numerical experiments were carried out in order to validate the model and the numerical scheme. The results obtained are in good agreement with the experimental data. © 2020 Elsevier Ltd
关键词	Hydrostatic pressure Sediment transport Bed-load transport Bedload sediment transport Boussinesq hypothesis Erosion and deposition Hydrostatic pressure assumption Numerical approaches Numerical experiments Numerical resolution Suspended sediments bedload conservation deposition erosion hydrostatic pressure numerical method sediment transport shallow water suspended load
语种	英语
来源机构	Advances in Water Resources
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/131810
推荐引用方式 GB/T 7714	González-Aguirre J.C.,Castro M.J.,Morales de Luna T.. A robust model for rapidly varying flows over movable bottom with suspended and bedload transport: Modelling and numerical approach[J]. Advances in Water Resources,2020,140.
APA	González-Aguirre J.C.,Castro M.J.,&Morales de Luna T..(2020).A robust model for rapidly varying flows over movable bottom with suspended and bedload transport: Modelling and numerical approach.,140.
MLA	González-Aguirre J.C.,et al."A robust model for rapidly varying flows over movable bottom with suspended and bedload transport: Modelling and numerical approach".140(2020).