A robust coupled model for solute transport driven by severe flow conditions
文献类型：SCI/SSCI论文
| 作者 | Zhang L. L.; Liang, Q. H.; Wang, Y. L.; Yin, J. X. |
| 发表日期 | 2015 |
| 关键词 | Adaptive mesh simulation Advection and diffusion Shallow water equations Godunov-type scheme Wetting and drying Complex topography shallow-water equations adaptive mesh refinement unstructured meshes riemann solvers source terms simulation 2d scheme bed |
| 英文摘要 | This paper introduces a computationally efficient model that solves a 4 x 4 matrix form of the hyperbolic conservation laws consisting of the 2D shallow water and advection-diffusion equations. The model allows automatic shock-capturing due to the implementation of a finite volume Godunov-type scheme featured with an HLLC approximate Riemann solver. The numerical scheme is also able to provide well-balanced solutions and maintain non-negative water depth and solute concentration for applications involving wetting and drying over complex domain topographies. Implemented on a simplified adaptive grid system, the model can save 3-17 times of computational cost without compromising solution accuracy for those simulations with predominant localised complex hydrodynamic or flow features, as demonstrated by the numerical experiments. Therefore, the current model provides a potential tool for efficient simulation of large-scale solute transport as well as flow hydrodynamics during a highly transient flood event caused by dam failure or flash flooding. (C) 2014 International Association for Hydro-environment Engineering and Research, Asia Pacific Division. Published by Elsevier B.V. All rights reserved. |
| 出处 | Journal of Hydro-Environment Research |
| 卷 | 9 |
| 期 | 1 |
| 页 | 49-60 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 1570-6443 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/39030]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Zhang L. L.,Liang, Q. H.,Wang, Y. L.,et al. A robust coupled model for solute transport driven by severe flow conditions. 2015. |
入库方式： OAI收割
来源：地理科学与资源研究所
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