2017 Vol. 10, No. 4

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A distributed eco-hydrological model and its application
Zong-xue Xu, Lei Li, Jie Zhao
2017, 10(4): 257-264. doi: 10.1016/j.wse.2017.12.007
Abstract(800) PDF(1069)
Abstract:
Eco-hydrological processes in arid areas are the focus of many hydrological and water resources studies. However, the hydrological cycle and the ecological system have usually been considered separately in most previous studies, and the correlation between the two has not been fully understood. Inte...
Preface for special section on flood modeling and resilience
Jing-ming Hou, Qiu-hua Liang, Gang Wang, Reinhard Hinkelmann
2017, 10(4): 265-266. doi: 10.1016/j.wse.2017.12.008
Abstract(697) PDF(732)
Abstract:
An efficient dynamic uniform Cartesian grid system for inundation modeling
Jing-ming Hou, Run Wang, Hai-xiao Jing, Xia Zhang, Qiu-hua Liang, Yan-yan Di
2017, 10(4): 267-274. doi: 10.1016/j.wse.2017.12.004
Abstract(715) PDF(1038)
Abstract:
A dynamic uniform Cartesian grid system was developed in order to reduce the computational time in inundation simulation using a Godunov-type finite volume scheme. The reduction is achieved by excluding redundant dry cells, which cannot be effectively avoided with a conventional Cartesian uniform gr...
Wave propagation speeds and source term influences in single and integral porosity shallow water equations
Ilhan Özgen, Jia-heng Zhao, Dong-fang Liang, Reinhard Hinkelmann
2017, 10(4): 275-286. doi: 10.1016/j.wse.2017.12.003
Abstract(700) PDF(785)
Abstract:
In urban flood modeling, so-called porosity shallow water equations (PSWEs), which conceptually account for unresolved structures, e.g., buildings, are a promising approach to addressing high CPU times associated with state-of-the-art explicit numerical methods. The PSWE can be formulated with a sin...
Comparison of depth-averaged concentration and bed load flux sediment transport models of dam-break flow
Jia-heng Zhao, Ilhan Özgen, Dong-fang Liang, Reinhard Hinkelmann
2017, 10(4): 287-294. doi: 10.1016/j.wse.2017.12.006
Abstract(746) PDF(535)
Abstract:
This paper presents numerical simulations of dam-break flow over a movable bed. Two different mathematical models were compared: a fully coupled formulation of shallow water equations with erosion and deposition terms (a depth-averaged concentration flux model), and shallow water equations with a fu...
Numerical study of edge waves using extended Boussinesq equations
Gang Wang, Zhong-bin Sun, Jun-liang Gao, Xiao-zhou Ma
2017, 10(4): 295-302. doi: 10.1016/j.wse.2017.12.002
Abstract(649) PDF(801)
Abstract:
An edge wave numerical model was developed based on extended Boussinesq equations with the internal wave-generation method. The form of edge waves near a seawall was chosen as the input signal in order to avoid treatment of the moving shoreline on a sloping beach. As there was an energy transfer bet...
Flood management of Dongting Lake after operation of Three Gorges Dam
Xi-jun Lai, Zi-ming Wang
2017, 10(4): 303-310. doi: 10.1016/j.wse.2017.12.005
Abstract(839) PDF(802)
Abstract:
Full operation of the Three Gorges Dam (TGD) reduces flood risk of the middle and lower parts of the Yangtze River Basin. However, Dongting Lake, which is located in the Yangtze River Basin, is still at high risk for potentially severe flooding in the future. The effects of the TGD on flood processe...
Effect of water-sediment regulation and its impact on coastline and suspended sediment concentration in Yellow River Estuary
Hai-bo Yang, En-chong Li, Yong Zhao, Qiu-hua Liang
2017, 10(4): 311-319. doi: 10.1016/j.wse.2017.12.009
Abstract(886) PDF(969)
Abstract:
Implementation of the water-sediment regulation (WSR) scheme, mainly focused on solving the sedimentation problems of reservoirs and the lower reaches of the Yellow River, has inevitably influenced the sediment distribution and coastal morphology of the Yellow River Estuary (YRE). Using coastline de...
Effects of urban grass coverage on rainfall-induced runoff in Xi’an loess region in China
Jing Li, Zhan-bin Li, Meng-jing Guo, Peng Li, Sheng-dong Cheng
2017, 10(4): 320-325. doi: 10.1016/j.wse.2017.12.001
Abstract(713) PDF(802)
Abstract:
In this study, laboratory rainfall simulation experiments were conducted to investigate the regulatory effects of grass coverage on rainfall-runoff processes. A total of 80 grass blocks planted with well-grown Manila grass, together with their root systems, were sampled from an eastern suburban area...
Fenton-like oxidation of azo dye in aqueous solution using magnetic Fe3O4-MnO2 nanocomposites as catalysts
Zhen-dong Fang, Kai Zhang, Jie Liu, Jun-yu Fan, Zhi-wei Zhao
2017, 10(4): 326-333. doi: 10.1016/j.wse.2017.10.005
Abstract(932) PDF(1225)
Abstract:
In order to overcome the drawback of the low degree of separation from an aqueous solution of MnO2, Fe3O4-MnO2 core-shell nanocomposites were used as heterogeneous Fenton-like catalysts for the removal of acid orange 7. On the basis of the catalyst characterization, the catalytic ability of the as-s...
Preparation of 2D square-like Bi2S3-BiOCl heterostructures with enhanced visible light-driven photocatalytic performance for dye pollutant degradation
Jing-jing Xu, Jing-wen Yang, Pu Zhang, Quan Yuan, Yan-hong Zhu, Yu Wang, Miao-miao Wu, Zheng-mei Wang, Min-dong Chen
2017, 10(4): 334-339. doi: 10.1016/j.wse.2017.12.010
Abstract(724) PDF(910)
Abstract:
A series of Bi2S3-BiOCl composites with two-dimensional (2D) square-like structures were prepared via a two-step anion exchange route. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and diffuse reflectance spectra (DRS) were used to investigate t...

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