Evaluación de los efectos de flujo cavitativo en estrangulamiento aplicado a válvulas reductoras hidráulicas

Abstract

In this master’s thesis, the cavitating flow in a hydraulic valve was investigated, emphasizing the numerical study of the cavitating flow in the globe valve using techniques related to computational fluid dynamics CFD. OpenFoam as free and opensource CFD software was used for the simulation. The main objective is to understand the cavitating phenomenon from the formation to the collapse of the cavity. The necessary methodology was developed to study the different stages in the formation of cavities. Using CAD tools, the geometry of the globe valve was built, and through snappyHexMesh tools, the study domain was optimized. The PIMPLE algorithm was used for the numerical resolution of the governing equations, the turbulence model used is k − ωSST and cavitation models used is Schnerr-Sauer.