Author(s)

M. Berezowsky, A.A. Jimenez and R. Mendoza

Abstract

A modeling system for the simultaneous determination of the control volume and the free-surface flow in rivers flowing over a flood plain is described. An iterative procedure is introduced. Starting from a guessed free-surface shape in plane, a curvilinear grid is constructed on the so formed domain. Then the 2D free-surface flow is computed. As a result, the water levels are obtained at all the grid nodes. With the water level values at the left and right boundaries, a curve is obtained from the intersection of the water surface level and the bed topography. From these curves a new boundary line is formed; if this is different from the previous one, a new iteration is started. The computations here described are compared to scale model measurements. Introduction The circulation pattern of free-surface fl

Keywords