World Academy of Science, Engineering and Technology
Published July 20, 2011 | Version 2541
Journal article Open

SPH Method used for Flow Predictions at a Turgo Impulse Turbine: Comparison with Fluent

Description

This work is an attempt to use the standard Smoothed Particle Hydrodynamics methodology for the simulation of the complex unsteady, free-surface flow in a rotating Turgo impulse water turbine. A comparison of two different geometries was conducted. The SPH method due to its mesh-less nature is capable of capturing the flow features appearing in the turbine, without diffusion at the water/air interface. Furthermore results are compared with a commercial CFD package (Fluent®) and the SPH algorithm proves to be capable of providing similar results, in much less time than the mesh based CFD program. A parametric study was also performed regarding the turbine inlet angle.

Files

2541.pdf

Files (2.2 MB)

Name Size Download all
md5:119af3f1b1de6940e990027a2df9b2b0
2.2 MB Preview Download

Additional details

References

  • J.S. Anagnostopoulos, D.E. Papantonis, "Flow modeling and runner design optimization in Turgo water turbines", Interantional Journal of Applied Science, Engineering and Technology, Vol. 4 Number 3 2007 ISSN 1307-4318
  • J.C. Marongiu, F. Leboef, E. Parkinson (2007), "Numerical simulation of the flow in a Pelton turbine using the meshless method smoothed particle hydrodynamics: a new simple boundary treatment", Journal of Power and Energy, Vol. 221, Part A, p. 849-856.
  • J. S. Anagnostopoulos, D. E. Papantonis (2006), "A numerical methodology for design optimization of Pelton turbine runners", Proceedings of the Hydro2006 conference, Porto Carras, Cyprus, 25-27 September 2006.
  • Y. Nakanishi, T. Fujii, M. Morinaka, K. Wachi (2006), "Numerical simulation of the flow in a Pelton bucket by a particle method", Proceedings of the 23rd IAHR Symposium, Yokohama, October 2006.
  • Price D.J., (2004), "Magnetic Fields in Astrophysics", PhD thesis, University of Cambridge, UK.
  • G.R. Liu, M. B. Liu (2003), "Smoothed particle hydrodynamics: a meshfree particle method", World Scientific Publishing Company, December 2003.
  • P. Koukouvinis, J. Anagnostopoulos, D. Papantonis (2009) "Flow modelling in the injector of a Pelton turbine", Proceedings of the 4th Spheric workshop, Nantes, France.
  • D. Violeau, R. Issa (2006), "Numerical modelling of complex turbulent free-surface flows with the SPH method: an overview", International Journal of Numerical Methods for Fluids.
  • F. Colin, R. Egli, F.Y. Lin (2005), "Computing a null divergence velocity field using smoothed particle hydrodynamics", Journal of Computational Physics. [10] J. Monaghan (2005), "Smoothed Particle Hydrodynamics", Reports on Progress in Physics, Volume 68 No.8, p. 1703-1759. [11] J. Morris, P. Fox, Y. Zhu (1997), "Modelling low Reynolds number incompressible flows using SPH", Journal of Computational Physics, Volume 136, p. 214-226. [12] M. Gomez-Gesteira, B. Rogers, R. Dalrymple, A. Crespo, M. Narayanaswamy (2010), Users guide for the Sphysics code v2.0, http://www.sphysics.org. [13] J. M. Dominiguez, A. Crespo (2009), "Improvements on SPH neighbour list", Proceedings of the 4th Spheric workshop, Nantes, France. [14] J. Monaghan, J. Kajtar (2009), "SPH boundary forces", Proceedings of the 4th Spheric workshop, Nantes, France. [15] P. Koukouvinis, J. Anagnostopoulos, D. Papantonis (2010) "Flow modelling in a Turgo turbine using SPH", Proceedings of the 5th Spheric workshop, Manchester, United Kingdom. [16] G. Koini, S. Sarakinos, I. Nikolos, (2009) "A software tool for parametric design of turbomachinery blades", Advances in Engineering Software, p.41-51, DOI : 10.1016/j.advengsoft.2008.03.008