Modelación hidráulica del canal de riego ubicado dentro de los predios de la Universidad técnica de Machala con hecras

Abstract

In the present work, the free software Hec Ras was used to model the secondary channel - Gate 74- from abscissa 18+460 to km 19+012, which corresponds to the section present within the premises of the Technical University of Machala. The process and management of the Hec-Ras software is detailed with information from the topographic survey of the channel and sections imported from the Civil 3D software from subassemblies created in Subassembly Composer, in order to evaluate hydraulic parameters based on open channel design recommendations for irrigation. This document consists of three parts: in the first part the generalities of the object of study were established, in the second part the theoretical aspects that govern open channels, definition and management of the Hec-Ras Software together with the algorithm used were defined for permanent flow, and complementary software: Civil 3D, Subassembly Composer and Hchannels. As a result, hydraulic parameters were obtained at different points along the Gate 74 channel to compare them with design recommendations given by other authors. In the last part, when comparing the results, it can be seen that the speeds do not exceed the maximum values, however, there are free boards smaller than those recommended at River Station 390.54, 400, 525 and 551.74, with values less than 0.40 m and from RS 340.02 to RS 437.3 there are speeds below the recommended minimum of 0.60 m/s, therefore, sedimentation problems may arise.