The effect of sediment characteristics for predicting erosion on Francis turbines blades

  • H.P. Neopane, O.G. Dahlhaug and M.J. Cervantes
  • Vol. 19 - Issue 1, 2012

Numerical simulations of a prototype Francis turbine have been carried out to investigate the influence of sediment characteristics on erosion prediction. Results from prototype inspections allow a qualitative validation of the simulations. The relationships between sediment movement and erosion inside the turbine have been investigated, and it was found that the erosion process is strongly dependent on the particle size, shape, and concentration. The variation of relative erosion rate density is different for different guidevane openings. The results may be used for sediment erosion prediction and prevention.

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The effect of sediment characteristics for predicting erosion on Francis turbines blades
  • Vol. 19 - Issue 1, 2012

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