Modelación bidimensional del flujo generado por la rotura de una presa de tierra, utilizando el programa IBER

Abstract

In this paper the two-dimensional modeling of earth dam-break (loose material), and analysis of the results of the flow generated by the same occurs. For modeling dam failures where there are large plains, as for areas where there meandering rivers and flood irregular sections, using a two-dimensional analysis program it is recommended. This is because the flow direction is no longer perpendicular to the axis of the river and moves horizontally into two components, allowing a better appreciation of the phenomenon that occurs in the fault. Moreover, in the one-dimensional analysis speed it is an average speed considered section and the two-dimensional analysis speed even longer, since it takes into account the displacement on a surface and not a cross section perpendicular. The modeling is done with the IBER software, a numerical model for two-dimensional flow modeling free surface in shallow water, which allows non-steady-state modeling. Among its capabilities can simulate breaking dam, river hydrodynamics, sediment transport and tidal estuaries. Dam to Dam Fish is modeled, this hydraulic structure will aim to store water for irrigation, flood control and drinking water. It is estimated that water will provide water to irrigate approximately 1400Ha, making the area more productive Olmedo (Manabí) Furthermore, the project will benefit from drinking water to a population of 13,000 future.