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.