Numerical investigations on bed load sediment transportation using SPH method

Numerical investigations have been carried out on bed load sediment transport in a river with uniform steady flow. The Lagrangian method is applied to develop the numerical model. The numerical method is a modified and improved version of the latest introduced Smoothed Particle Hydrodynamic scheme for incompressible fluid, which was named I-SPH. The model is applied to calculate the bed load sediment transportation rate, as well as the moving pattern, of granular and non-cohesive sediments located on the bed of a river. The presented numerical scheme, which is improved to be applicable for Multi-Phase fluids, is named MPM-I-SPH. It is concluded that the developed model is reliable for prediction of the moving pattern of sediments, including velocity and location, near to the bed.