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Water 2017, 9(6), 387; doi:10.3390/w9060387

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

1
School of Water Resources and Electric Power, Qinghai University, Xinning 810016, China
2
State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining 810016, China
3
State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China
*
Author to whom correspondence should be addressed.
Academic Editors: Gordon Huang and Yurui Fan
Received: 7 April 2017 / Revised: 19 May 2017 / Accepted: 28 May 2017 / Published: 31 May 2017
(This article belongs to the Special Issue Modeling of Water Systems)

Abstract

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. View Full-Text
Keywords: SWE-SPH; SPHysics; dam break flow; South-Gate Gorges Reservoir SWE-SPH; SPHysics; dam break flow; South-Gate Gorges Reservoir
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Gu, S.; Zheng, X.; Ren, L.; Xie, H.; Huang, Y.; Wei, J.; Shao, S. SWE-SPHysics Simulation of Dam Break Flows at South-Gate Gorges Reservoir. Water 2017, 9, 387.

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