SWE-SPHysics Simulation of Dam Break Flows at South-Gate Gorges Reservoir

This paper applied a Smoothed Particle Hydrodynamics (SPH) approach to solve Shallow Water Equations (SWEs) to study practical dam-break flows. The computational program is based on the open source code SWE-SPHysics, where a Monotone Upstream-centered Scheme for Conservation Laws (MUSCL) reconstruct...

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Bibliographic Details
Published in:Water (Basel) 2017-05, Vol.9 (6), p.387
Main Authors: Gu, Shenglong, Zheng, Xianpei, Ren, Liqun, Xie, Hongwei, Huang, Yuefei, Wei, Jiahua, Shao, Songdong
Format: Article
Language:English
Subjects:
Analysis
Canyons
China
Computational fluid dynamics
Computer applications
Computer simulation
Conservation laws
Dam engineering
Dam failure
Dams
Environmental law
Flood forecasting
Fluid dynamics
Fluid flow
Hydrodynamics
Model testing
MUSCL schemes
Open source software
Reservoirs
Shallow water
Shallow water equations
Smooth particle hydrodynamics
Source code
Water circulation
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Summary:This paper applied a Smoothed Particle Hydrodynamics (SPH) approach to solve Shallow Water Equations (SWEs) to study practical dam-break flows. The computational program is based on the open source code SWE-SPHysics, where a Monotone Upstream-centered Scheme for Conservation Laws (MUSCL) reconstruction method is used to improve the Riemann solution with Lax-Friedrichs flux. A virtual boundary particle method is applied to treat the solid boundary. The model is first tested on two benchmark collapses of water columns with the existence of downstream obstacle. Subsequently the model is applied to forecast a prototype dam-break flood, which might occur in South-Gate Gorges Reservoir area of Qinghai Province, China. It shows that the SWE-SPH modeling approach could provide a promising simulation tool for practical dam-break flows in engineering scale.
ISSN:2073-4441
2073-4441
DOI:10.3390/w9060387