A comprehensive text on the basics of modeling flow and sediment transport in riverstreating bothphysical principles and numerical methods for different levels of complexity.Includes 1-D, 2-D (both depth and width-average) and 3-D model, and integration and coupling this models.Contains a wide choice of numerical method for open channel flow, such as (C) SIMPLE algorithm on staggered grids and non-staggered, projection method, and the stream function and vorticity method. The state-of-the-art in sediment transport modeling approaches are described, such as non-equilibrium transport models, non-uniform total-load transport models, and semi-coupled and coupled procedures for flow and sediment calculations.