Numerical Study of the Flow in Rotor-Stator of Francis Turbine
Hefny, E., Mekhail, T., Abdelfadeel, W., Mohamed, I. (2020). Numerical Study of the Flow in Rotor-Stator of Francis Turbine. EKB Journal Management System, 2(2), 82-87. doi: 10.21608/ijaes.2020.169896
Ezz Eldin Mohamed Hefny; Tarek Mekhail; Waleed Ahmed Abdelfadeel; Ibrahim Kamal Mohamed. "Numerical Study of the Flow in Rotor-Stator of Francis Turbine". EKB Journal Management System, 2, 2, 2020, 82-87. doi: 10.21608/ijaes.2020.169896
Hefny, E., Mekhail, T., Abdelfadeel, W., Mohamed, I. (2020). 'Numerical Study of the Flow in Rotor-Stator of Francis Turbine', EKB Journal Management System, 2(2), pp. 82-87. doi: 10.21608/ijaes.2020.169896
Hefny, E., Mekhail, T., Abdelfadeel, W., Mohamed, I. Numerical Study of the Flow in Rotor-Stator of Francis Turbine. EKB Journal Management System, 2020; 2(2): 82-87. doi: 10.21608/ijaes.2020.169896

Numerical Study of the Flow in Rotor-Stator of Francis Turbine

International Journal of Applied Energy Systems
Article 4, Volume 2, Issue 2, July 2020, Page 82-87  XML PDF (2.13 MB)
Document Type: Original papers
DOI: 10.21608/ijaes.2020.169896
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Authors
Ezz Eldin Mohamed Hefny1; Tarek Mekhail email 2; Waleed Ahmed Abdelfadeel3; Ibrahim Kamal Mohamed4, 5
1Hydro Power Generation Company High-Dam Power Station Aswan, Egypt
2Faculty of Energy Engineering - Aswan University - Aswan - Egypt
3Mech. Power Engineering Dept. Faculty of Energy Engineering Aswan University - Aswan, Egypt
4Faculty of Engineering at Rabigh King Abdulaziz University, KSA Mech. Power Engineering Dept
5Faculty of Energy Engineering Aswan University - Aswan, Egypt
Abstract
This study focuses on the aspects of rotor-stator interaction in a realistic prototype Francis turbine for two main load settings. The study used a state-of-the-art computational fluid dynamics technique to simulate the flow in the whole
turbine. The method used in this study is based on solving the Reynolds-averaged Navier–Stokes equations with the
turbulence model k-ε. The flow parameters such as velocity and pressure are analyzed to show the main flow characteristics within the turbine components. Pressure signals at some points within the turbine are analyzed to find out the primary and the secondary frequencies of the pressure signal. Comparing the measurement of the pressure with the simulations revealed that the computational solution is in good comparison with the measurement. Fast Fourier transform algorithm is applied to the pressure signals sampled from some points in the turbine in order to find out the inherent frequencies. These pressure frequencies are important to find the resonance possibilities. The study gave two important deliverables for the operation and design of this specific Francis turbine. The first one is the actual geometry of the turbine and the second one is the database of the computational solution. These two deliverables can be used for future research and analysis of the Francis turbine.
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