Desarrollo y estudio de un mallado estructurado para un Turbina tipo Francis con validación experimental

Abstract

This paper contextualizes the role of the methodology to develop a type of structured mesh as a fundamental support tool in the process of optimization and analysis of Francis turbines, this strategy offers a clear advantage in the following aspects: high quality and control degree, better alignment and convergence, uses less storage memory and computationally faster. The generation of structured meshes is developed in the ICEM CFD starting with optimization of the model and subsequently through a multi-block strategy, including the geometries and solid bodies present in the flow field or that enclose the flow domain can reach an acceptable mesh quality avoiding negative volumes. Stable and unstable conditions in ANSYS CFX simulate the effects of flow obtaining results of speed, pressure and efficiency of the turbine very close to experimental data to validate the type of structured mesh