Correlating Sediment Erosion in Rotary–Stationary Gaps of Francis Turbines with Complex Flow Patterns

Secondary flows in Francis turbines are induced by the presence of a gap between guide vanes and top–bottom covers and rotating–stationary geometries. The secondary flow developed in the clearance gap of guide vanes induces a leakage vortex that travels toward the turbine downstream, affecting the r...

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Bibliographic Details

Published in:	Energies
Main Authors:	Nirmal Acharya, Saroj Gautam, Sailesh Chitrakar, Igor Iliev, Ole Gunnar Dahlhaug
Format:	Article
Language:	English
Published:	MDPI AG 2024-11-01
Subjects:	Francis turbine guide vane clearance gaps leakage vortex labyrinth secondary flow sediment erosion
Online Access:	https://www.mdpi.com/1996-1073/17/23/5961