Simulación numérica bidimensional con el programa Hec Ras 5 de los lahares primarios del volcán Cotopaxi en el tramo del río Santa Clara, parroquia de Sangolquí y comparación con el software Iber

Abstract

The objective of this study is to implement the a new software Hec-Ras, for simulations of primary lahars of the drainage northern of the Cotopaxi volcano, for areas of low slope with flow rates wide, with a little shallow character, such as the parish of Sangolquí, through the use of the program Hec Ras e Iber. For this purpose, It was made the calibration of the model in the Hec Ras software through of the varying the roughness layer within the simulation section. This work allowed to determine the applicability of the two dimensional simulation for flow of primary lahars of the North flank of the Cotopaxi volcano in the stretch of the Santa Clara river, corresponding to the Sangolquí, parish in the different vestige sections of the area to be modeled and comparing the obtained results of the Hec Ras program with those of Iber. The result of this research, a study was obtained which can be used into account for future projects related to the two-dimensional flow simulation of lahars, not only in the study area, but in other places, In addition, as a result of the simulations in Iber and Hec Ras, the result of similar simulations in so far as height of water, speeds and flood maps, but with evident differences in certain sections analyzed and in the simulation time.