CFX Analysis of Kaplan Turbine

  • Unique Paper ID: 203713
  • Volume: 13
  • Issue: 1
  • PageNo: 66-72
  • Abstract:
  • Hydropower has always been seen as a dependable and clean source of energy, and at the heart of it, turbines like the Kaplan turbine play a major role in how efficiently energy is generated. In this study, an attempt has been made to understand the real flow behaviour inside a Kaplan turbine using Computational Fluid Dynamics (CFD) analysis carried out in ANSYS CFX. Instead of relying only on theoretical assumptions, a 3D model of the turbine was developed and tested under different working conditions to see how water actually interacts with the runner blades, guide vanes, and draft tube. The focus was mainly on observing how pressure and velocity change within the turbine and where losses or disturbances in flow tend to occur. Certain regions were also studied more carefully to identify possible chances of cavitation, which can affect performance over time. By slightly varying parameters like flow rate and blade angle, it became easier to notice how sensitive the turbine performance is to operating conditions. The results from the simulation helped in getting a clearer picture of where improvements can be made in design to reduce losses and improve efficiency. Overall, this work shows how practical and useful CFD tools can be when it comes to studying and improving real engineering systems like hydraulic turbines.

Copyright & License

Copyright © 2026 Authors retain the copyright of this article. This article is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

BibTeX

@article{203713,
        author = {Shivraj Shinde and Prof. Mangesh Chaudhari and Omkar Shaha and Siddhant Shinde},
        title = {CFX Analysis of Kaplan Turbine},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {13},
        number = {1},
        pages = {66-72},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=203713},
        abstract = {Hydropower has always been seen as a dependable and clean source of energy, and at the heart of it, turbines like the Kaplan turbine play a major role in how efficiently energy is generated. In this study, an attempt has been made to understand the real flow behaviour inside a Kaplan turbine using Computational Fluid Dynamics (CFD) analysis carried out in ANSYS CFX. Instead of relying only on theoretical assumptions, a 3D model of the turbine was developed and tested under different working conditions to see how water actually interacts with the runner blades, guide vanes, and draft tube. The focus was mainly on observing how pressure and velocity change within the turbine and where losses or disturbances in flow tend to occur. Certain regions were also studied more carefully to identify possible chances of cavitation, which can affect performance over time. By slightly varying parameters like flow rate and blade angle, it became easier to notice how sensitive the turbine performance is to operating conditions. The results from the simulation helped in getting a clearer picture of where improvements can be made in design to reduce losses and improve efficiency. Overall, this work shows how practical and useful CFD tools can be when it comes to studying and improving real engineering systems like hydraulic turbines.},
        keywords = {Kaplan turbine, computational fluid dynamics, ANSYS CFX, hydropower, flow analysis, turbine efficiency, cavitation, pressure and velocity distribution},
        month = {June},
        }

Cite This Article

Shinde, S., & Chaudhari, P. M., & Shaha, O., & Shinde, S. (2026). CFX Analysis of Kaplan Turbine. International Journal of Innovative Research in Technology (IJIRT), 13(1), 66–72.

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