Quasi - 3D and Full - 3D Approaches for Numerical Simulation in Axial Flow Hydraulic Turbine

Authors

  • Vishnu Prasad Maulana Azad National Institute of Technology, Bhopal, India (MANIT)
  • K. S. Sayann engaged in teaching, research and consultancy
  • P Krishnamachar engaged in teaching, research, consultancy and developing technical institutions for the past 48 years at IIT, Kharagpur, EdF France, MANIT, Universityof Rutgers, USA

DOI:

https://doi.org/10.3126/hn.v4i0.1825

Keywords:

Hydraulic turbine, computational fluid dynamics, meridional flow, circulation

Abstract

Water passes through the rows of stationary and rotating blades in the turbine space and thus the flow becomes complex. The application of computational fluid dynamics (CFD) is steadily increasing to improve design of hydraulic turbines. The numerical flow simulation in the hydraulic turbine space can either be based on potential or viscous flow theory. In both the approaches, detailed flow behavior in complete turbine space is obtained. The quasi- 3D potential flow approach is quick and simple as compared to full-3D viscous flow methods of analysis but do not take into account the friction losses, which need to be computed separately. The direct flow analysis has been carried out in an experimentally tested model of axial flow hydraulic turbine using the two approaches and the comparison of flow pattern and computed parameters in runner is made in present paper. The computed efficiencies and other performance parameters have also been compared with experimental values at some critical points for validation.

Hydro Nepal: Journal of Water, Energy and Environment Issue No. 4, January, 2009 Page 42-48

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Author Biographies

Vishnu Prasad, Maulana Azad National Institute of Technology, Bhopal, India (MANIT)

Assistant Professor in Maulana Azad National Institute of Technology, Bhopal, India (MANIT) is presently pursuing research in hydraulic turbines and water resources. He has 17 years of experience in teaching, consultancy and research at Hydro Research Centre, MANIT. He had been to UK for training on model testing and CFD for six months. He has published 37 papers and guided 30 M.Tech dissertations.

K. S. Sayann, engaged in teaching, research and consultancy

engaged in teaching, research and consultancy since 1974 at MANIT, Bhopal. Dr. Sayann has worked in various administrative positions including Director of MANIT and published many research papers.

P Krishnamachar, engaged in teaching, research, consultancy and developing technical institutions for the past 48 years at IIT, Kharagpur, EdF France, MANIT, Universityof Rutgers, USA

has been engaged in teaching, research, consultancy and developing technical institutions for the past 48 years at IIT, Kharagpur, EdF France, MANIT, University of Rutgers, USA etc. Specialized in Water Power and energy conservation, he has over 96 papers and two books published and presented at various forums. He is a Hydro consultant and is working on design of small hydro power plants as a member of Micro Hydel Core group of DST, India.

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Published

2009-05-24

How to Cite

Prasad, V., Sayann, K. S., & Krishnamachar, P. (2009). Quasi - 3D and Full - 3D Approaches for Numerical Simulation in Axial Flow Hydraulic Turbine. Hydro Nepal: Journal of Water, Energy and Environment, 4, 42–48. https://doi.org/10.3126/hn.v4i0.1825

Issue

Vol. 4 (2009)

Section

Articles

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