An Upwind Cell Center Finite Volume Solver for Simulation of Erosion and Deposition of Fine Non-Cohesive Sediments

The details of an upwind cell center finite volume free surface flow solver are described in this paper. The model solves two dimensional convection-diffusion equation of suspended sediment transport as well as depth-averaged shallow water flow and k-ε turbulence model equations in a coupled manner; which includes a new and effective relation to estimate the critical shear stress. Validation of the sediment transport module is performed through simulation of two test cases in the straight channels. Comparison of the numerical results with the experimental measurements shows very good and acceptable agreement between the simulated results and measured data.

Keywords:

Upwind , Finite Volume , Turbulence , Sediment Transport , Non-Cohesive