Dinâmica dos fluidos para variações na geometria de um rotor de bomba centrífuga

Abstract

Centrifugal pumps are critical equipment in various industries, from water supply to pharmaceuticals. Their performance depends heavily on the geometry of their components, making fluid-structure interaction studies vital for both optimization and new design insights. Computational simulations enable cost and time efficiency in this analysis while improving result reliability. This study investigates the behavior of a commercial centrifugal pump by modifying its impeller, one of the system9s key components. A geometry replicating the original impeller was developed, and simulation results were validated against manufacturer data. Furthermore, geometric variations were analyzed to evaluate how the number of blades and the blade outlet angle influence pump performance. Results indicated that while simulations closely matched real-world data, the lack of a volute in the model affected accuracy. Increasing the number of blades enhanced flow guidance, boosting performance without sacrificing efficiency. A larger blade outlet angle also outperformed both the original design and smaller angles.