03.1 - Aerodynamics – CFD Methods and Validation
EFFECTS OF TWO WINGLET TIP GEOMETRIES ON THE FLOW AND AERODYNAMIC PERFORMANCE OF A HYDRAULIC AXIAL TURBINE
D.S. Tonon¹, J.T. Tomita¹, C. Bringhenti¹, D.F.C. Barbosa¹, L.H.L. Whitacker¹, L.E.N. Almeida, AVIBRAS, Brazil; ¹Aeronautics Institute of Technology , Brazil
The use of desensitization techniques has proven to be an excellent strategy for reducing tip leakage. The objective of this work is to verify the effects of two Winglet geometries in a hydraulic axial turbine. The results obtained show that it is possible to improve the turbine efficiency depending on the geometry adopted. The work also presents an analysis regarding the cavitation phenomenon.