Integrating 1D and 2D hydrodynamic, sediment transport model for dam-break flow using finite volume method

2014 ◽  
Vol 57 (4) ◽  
pp. 774-783 ◽  
Author(s):  
MingLiang Zhang ◽  
YuanYuan Xu ◽  
ZiNing Hao ◽  
Yang Qiao
Keyword(s):  
Sediment Transport ◽  
Finite Volume Method ◽  
Finite Volume ◽  
Transport Model ◽  
Dam Break ◽  
Sediment Transport Model ◽  
Dam Break Flow ◽  
Volume Method

scholarly journals 1D and 2D Numerical Modeling for Solving Dam-Break Flow Problems Using Finite Volume Method

2012 ◽  
Vol 2012 ◽  
pp. 1-14 ◽  
Author(s):  
Szu-Hsien Peng
Keyword(s):  
Shallow Water ◽  
Finite Volume Method ◽  
Finite Volume ◽  
Shallow Water Equation ◽  
Dam Break ◽  
Flume Experiments ◽  
One Dimensional ◽  
Dam Break Flow ◽  
The One ◽  
Volume Method

The purpose of this study is to model the flow movement in an idealized dam-break configuration. One-dimensional and two-dimensional motion of a shallow flow over a rigid inclined bed is considered. The resulting shallow water equations are solved by finite volumes using the Roe and HLL schemes. At first, the one-dimensional model is considered in the development process. With conservative finite volume method, splitting is applied to manage the combination of hyperbolic term and source term of the shallow water equation and then to promote 1D to 2D. The simulations are validated by the comparison with flume experiments. Unsteady dam-break flow movement is found to be reasonably well captured by the model. The proposed concept could be further developed to the numerical calculation of non-Newtonian fluid or multilayers fluid flow.

scholarly journals A Non-Equilibrium Sediment Transport Model for Dam Break Flow over Moveable Bed Based on Non-Uniform Rectangular Mesh

Water ◽  
2018 ◽  
Vol 10 (5) ◽  
pp. 616 ◽  
Author(s):  
Gangfeng Wu ◽  
Zhehao Yang ◽  
Kefeng Zhang ◽  
Ping Dong ◽  
Ying-Tien Lin
Keyword(s):  
Sediment Transport ◽  
Transport Model ◽  
Dam Break ◽  
Sediment Transport Model ◽  
Rectangular Mesh ◽  
Dam Break Flow ◽  
Non Equilibrium

scholarly journals Finite volume method solution of pollutant transport in catchment sheet flow

2013 ◽  
Vol 45 (2) ◽  
pp. 182-189
Author(s):  
Gokmen Tayfur ◽  
Zhiguo He ◽  
Qihua Ran
Keyword(s):  
Finite Volume Method ◽  
Finite Volume ◽  
Active Layer ◽  
Overland Flow ◽  
Transport Model ◽  
Pollutant Transport ◽  
Water Volume ◽  
Sheet Flow ◽  
Advection Diffusion Equation ◽  
Volume Method

A finite volume numerical method was employed in the solution of two-dimensional pollutant transport in catchment sheet flow. The full dynamic wave constituted the sheet flow while the advection–diffusion equation with sink/source terms was the pollutant transport model. It is assumed that the solute in the surface active layer is uniformly distributed and the exchange rate of the solute between the active layer and overland flow are proportional to the difference between the concentrations in soil and water volume. Decrease of the solute transfer rate in the active surface layer caused by the transfer of solutes from soil to the overlying runoff is assumed to follow an exponential law. The equations governing sheet flow and pollutant transport are discretized using the finite volume method in space and an implicit backward difference scheme in time. The model was subjected to several numerical tests involving varying microtopographic surface, roughness, and infiltration. The results revealed that spatially varying microtopography plays an important role unlike the roughness and infiltration with respect to the total pollutant rate from the outlet of a catchment.

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