Caracterización del Resalto Hidráulico para la Interacción Bajante – Colector a Partir de un Modelo CFD en OpenFOAM

Abstract

This research focuses on the hydraulic jump characterization that is generated in the stack – horizontal drain interaction for a storm drainage system in buildings, from the results generated in OpenFOAM and compared with subsequent depths model, adapted for open channel flow in pipes. To make this system possible in OpenFOAM, it is necessary to use the Salome-Meca geometric tool for meshing and InterFOAM solver at the processing stage. Likewise, through the turbulence model (k-ε) fluid-structure effects interaction are observed, identifying fluctuations and flow lines direction in the system. Flows below 4 L/s show results with weak hydraulic jump formation and with greater air presence than hydraulic flow, and for flows greater than 17.5 L/s overflow system is observed, because it exceeds its capacity. Lastly, three hydraulic jump types are determined in the stack – horizontal drain interaction, therefore, it is concluded that open channel flow in pipes considering the phenomenon produced in the system but not the minimum flow required for it to occur.