气候变化领域集成服务门户(CCPortal): Internal boundary conditions for a GPU-accelerated 2D shallow water model: Implementation and applications

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DOI	10.1016/j.advwatres.2020.103525
	Internal boundary conditions for a GPU-accelerated 2D shallow water model: Implementation and applications
	Dazzi S.; Vacondio R.; Mignosa P.
发表日期	2020
ISSN	0309-1708
卷号	137
英文摘要	Flood propagation in rivers is strongly influenced by the presence of bridges and other hydraulic structures. Among the available approaches for including these elements in numerical models, the adoption of Internal Boundary Conditions (IBC), given its ability to capture backwater, is suitable for field-scale analyses for flood hazard assessment. In this paper, the implementation of internal boundary conditions in the two-dimensional shallow water code named “PARFLOOD” is presented. The application to experimental and real test cases shows that the proposed IBC model can handle both low and high flow conditions for bridges, while being flexible for other types of structures (e.g. flow-through dams). Moreover, the model is computationally efficient (physical/computational time ratio around 20–30 for domains with ~106 cells), thanks to the code parallelization on GPU. © 2020
关键词	Boundary conditions Bridges Equations of motion Floods Graphics processing unit Hydraulic structures 2D shallow water equations 2D shallow waters Computationally efficient Flood hazard assessment Flood modeling Flood propagation High flow conditions Internal boundary conditions International law boundary condition bridge computer simulation flood frequency flow modeling hazard assessment hydraulic structure numerical model river flow shallow-water equation two-dimensional modeling
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/131843
推荐引用方式 GB/T 7714	Dazzi S.,Vacondio R.,Mignosa P.. Internal boundary conditions for a GPU-accelerated 2D shallow water model: Implementation and applications[J]. Advances in Water Resources,2020,137.
APA	Dazzi S.,Vacondio R.,&Mignosa P..(2020).Internal boundary conditions for a GPU-accelerated 2D shallow water model: Implementation and applications.,137.
MLA	Dazzi S.,et al."Internal boundary conditions for a GPU-accelerated 2D shallow water model: Implementation and applications".137(2020).