Forced and Self Oscillations of Hydraulic Systems Induced by Cavitation Vortex Rope of Francis Turbines

@inproceedings{Allign2011ForcedAS,
  title={Forced and Self Oscillations of Hydraulic Systems Induced by Cavitation Vortex Rope of Francis Turbines},
  author={S{\'e}bastien Allign{\'e}},
  year={2011}
}
With economical energy market strategies based on instantaneous pricings of electricity as function of the demand or the predictions, operators harness more hydroelectric facilities to off-design operating points to cover the variations of the electricity production. Under these operating conditions, Francis turbines develop a cavitating swirling flow at the runner outlet which induces pressure fluctuations propagating in the whole hydraulic system. The core of this cavitating vortex is usually… CONTINUE READING

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References

Publications referenced by this paper.
Showing 1-10 of 98 references

Identification of Francis Turbine Helical vortex rope Excitation by CFD simulation and Resonance Simulation with the Hydraulic System

  • S. Alligné, C. Nicolet, F. Avellan
  • Proceedings of the 7th International Symposium on…
  • 2011

Identification of the Mechanism Inducing Upper Part Load Resonance Phenomenon by CFD Simulation, Proceedings of the 4th IAHR WG Meeting on Cavitation and Dynamic Problems in Hydraulic Machinery

  • S. Alligné, C. Nicolet, F. Avellan
  • 2011

Simulation of Water Hammer Induced Column Separation through Electrical Analogy

  • C. Nicolet, T. Kaelbel, +4 authors F Avellan
  • Proceedings of the 4th IAHR WG Meeting on…
  • 2011

Experimental study and numerical simulation of cavity oscillation in a conical diffuser

  • C. Chen, C. Nicolet, +4 authors Y. Tsujimoto
  • International Journal of Fluid Machinery and…
  • 2010

Experimental study and numerical simulation of cavity oscillation in a diffuser with swirling flow

  • C. Chen, C. Nicolet, +4 authors Y. Tsujimoto
  • International Journal of Fluid Machinery and…
  • 2010

Francis full-load surge mechanism identified by unsteady 2-phase cfd

  • P. Dörfler, M. Keller, O. Braun
  • In Proceedings of the 25th IAHR Symposium on…
  • 2010

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