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Fluid structure interaction analysis on failure of Francis turbine runner blades

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Title: Fluid structure interaction analysis on failure of Francis turbine runner blades

Authors: Salary A., Verlinski S., Levonyan H., Tyagunov A., Tarasov D.

Journal: ARPN Journal of Engineering and Applied Sciences

HEC Recognition History
Category From To
Y 2023-07-01 2024-09-30
Y 2022-07-01 2023-06-30
Y 2021-07-01 2022-06-30
X 2020-07-01 2021-06-30

Publisher: Khyber Medical College, Peshawar

Country: Pakistan

Year: 2018

Volume: 13

Issue: 5

Language: English

Categories
Fluid Dynamics (835) Failure Analysis (43) Finite Element Analysis (223) Mechanical Engineering (4477) Turbomachinery (26)

Abstract

This paper describes the influence of tail profile of Francis turbine blade on creation of vortexes and cavitations and its effects on initiation of crack. Fluid structural analysis is utilized to determine the location of Von-Karman vortexes and the positions in which cavitations occurs. Incompressible viscid Navier-Stokes formula was solved by CFD numerical method, meanwhile the stress distribution on the runner blades are calculated in FEM. It led to indicate the situation of crack nucleation and the results are perceived for both existence and retrofitted blades.

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