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Scale Resolving Flow Simulations of a Francis Turbine Using Highly Parallel CFD Simulations

In: High Performance Computing in Science and Engineering ´16

Author

Listed:
  • Timo Krappel

    (Institute of Fluid Mechanics and Hydraulic Machinery)

  • Stefan Riedelbauch

    (Institute of Fluid Mechanics and Hydraulic Machinery)

Abstract

In this paper, transient flow simulations of a Francis turbine in part load conditions are presented. The dominating flow phenomenon, the vortex rope, leads to a very complex flow field, especially in the draft tube of the turbine. As the resolution of turbulence is important, the Scale Adaptive Simulation (SAS) approach is used. The mesh size of the entire Francis turbine is up to 300 million mesh nodes. The commercial CFD code Ansys CFX version 17.0 is used, which performs up to a few thousands of cores for this kind of application.

Suggested Citation

  • Timo Krappel & Stefan Riedelbauch, 2016. "Scale Resolving Flow Simulations of a Francis Turbine Using Highly Parallel CFD Simulations," Springer Books, in: Wolfgang E. Nagel & Dietmar H. Kröner & Michael M. Resch (ed.), High Performance Computing in Science and Engineering ´16, pages 499-510, Springer.
    • Handle: RePEc:spr:sprchp:978-3-319-47066-5_34
    DOI: 10.1007/978-3-319-47066-5_34
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