Evaluación del desempeño hidráulico de la obra de control de flujo del canal multipropósitos de la captación de derivación lateral ubicada en el Campus Balzay

Abstract

This study proposes an integral evaluation of the hydraulic performance of the flow control system of the direct lateral intake located at Campus Balzay, using analytical, experimental and numerical methodologies. Initially, the experimental methodology is used to determine the operating flow range of the thin plate V – notch weir. As a complementary tool, computational fluid dynamics (CFD) was used, implemented by means of the OpenFOAM program, using a discretized mesh of the construction site obtained by means of the Salome Meca program. The simulated data were validated through a qualitative characterization of the flow patterns and the interpretation of velocity maps for different flow rates. Additionally, the analytical methodology was applied to determine the discharge coefficient and the discharge curve for the spillway. As main results of the study, from the field measurement it was identified that the operating flow range of the spillway oscillates between 0.048 m3

/s-0.288 m3

/s. Numerical modeling was used to calibrate the effective roughness height for the channel, with a value of 0.0025. Then, the discharge coefficient of the weir was obtained, which adjusts to the theoretical limits, being 0.589. Additionally, the discharge curve for the weir was generated and it was verified that the flow behavior along the structure adheres to the expected physical principles. The parameters obtained allow a deep understanding of the flow behavior and are very useful in future hydraulic development projects.