International Journal of Fluid Machinery and Systems

한국유체기계학회 (Korean Society for Fluid machinery)
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Fully coupled FSI analysis of Francis turbines exposed to sediment erosion

  • Chitrakar, Sailesh (Department of Mechanical Engineering, School of Engineering, Kathmandu University Turbine Testing Lab) ;
  • Cervantes, Michel (Department of Fluid and Experimental Mechanics, Lulea University of Technology) ;
  • Thapa, Biraj Singh (Department of Mechanical Engineering, School of Engineering, Kathmandu University Turbine Testing Lab)
  • 투고 : 2014.03.28
  • 심사 : 2014.06.06
  • 발행 : 2014.09.30
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초록

Sediment erosion is one of the key challenges in hydraulic turbines from a design and maintenance perspective in Himalayas. The present study focuses on choosing the best design in terms of blade angle distribution of a Francis turbine runner which has least erosion effect without influencing the efficiency and the structural integrity. A fully coupled Fluid-Structure-Interaction (FSI) analysis was performed through a multi-field solver, which showed that the maximum stress induced in the optimized design for better sediment handling, is less than that induced in the reference design. Some numerical validation techniques have been shown for both CFD and FSI analysis.

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참고문헌

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피인용 문헌

  1. Implementation of Computer Aided Engineering for Francis Turbine Development in Nepal vol.2015, pp.2314-5781, 2015, https://doi.org/10.1155/2015/509808
  2. Selection of Optimal Number of Francis Runner Blades for a Sediment Laden Micro Hydropower Plant in Nepal vol.8, pp.4, 2015, https://doi.org/10.5293/IJFMS.2015.8.4.294