Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/1510
Title: Numerical research of cavitation on Francis turbine runners
Authors: Çelebioğlu, Kutay
Altıntaş, Burak
Aradağ, Selin
Taşcıoğlu, Yiğit
143685
143108
Keywords: Cavitation
Francis turbine
Computational fluid dynamics
Off-design points
Issue Date: 13-Jul-2017
Publisher: Pergamon-Elsevier Science Ltd
Source: Celebioglu, K., Altintas, B., Aradag, S., & Tascioglu, Y. (2017). Numerical research of cavitation on Francis turbine runners. International Journal of Hydrogen Energy, 42(28), 17771-17781.
Abstract: Francis turbines, as other hydraulic turbines, are custom-designed for nominal operating conditions specific to each power plant. However, they may need to be operated at off design flow conditions because of variable reservoir levels and flowrates. Operating the turbine at off-design points can cause cavitation. Four cavitation types can be observed on Francis turbine runners. These are leading edge, travelling bubble, draft tube swirl and inter-blade vortex cavitation. They may cause erosion, reduction in efficiency, vibration, instability of operation and noise. Runner blades must be designed taking the flow characteristics into account for design conditions to prevent cavitation. Cavitation limits for the off-design points must also be determined. In this study, the runner geometry of an actual hydroelectric power plant that was designed and implemented in 1960s, is redesigned with the help of the state of the art computational fluid dynamics techniques for cavitation free operation. The cavitation limits for the off-design points are also determined. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
URI: https://www.sciencedirect.com/science/article/pii/S0360319917312259
https://hdl.handle.net/20.500.11851/1510
ISSN: 0360-3199
Appears in Collections:Makine Mühendisliği Bölümü / Department of Mechanical Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Show full item record

CORE Recommender

SCOPUSTM   
Citations

24
checked on Sep 23, 2022

WEB OF SCIENCETM
Citations

33
checked on Sep 24, 2022

Page view(s)

24
checked on Dec 26, 2022

Google ScholarTM

Check

Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.