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Large Eddy Simulation of Cavitating Flows Using a Novel Stochastic Field Formulation

In: High Performance Computing in Science and Engineering ‘13

Author

Listed:
  • F. Magagnato

    (Karlsruhe Institute of Technology, Department of Fluid Machinery)

  • J. Dumond

    (Karlsruhe Institute of Technology, Institute for Nuclear and Energy Technologies)

Abstract

The basic ideas of the Stochastic Fields method for turbulent reacting flows have been adapted to compressible cavitating flows. A probability density function approach is applied to the vapor mass fraction to simulate vapor bubble size distribution and implemented into our finite volume compressible code. The water-vapor mixture is assumed in homogeneous equilibrium and the vapor mass fraction is described by a set of pure Eulerian transport equations with stochastic source terms.With this novel technique, major two-phase flow parameters like vapor bubble radius, inter-facial area and volume can be captured. Also the source term non-linearity can be resolved at the sub-grid scale. No Lagrangian solver or equations for bubbles clusters are required leading to a low computational cost and simple implementation. The focus of this work is on the theory of the novel stochastic model and aspects of its implementation. Applications include sheet cavitation.

Suggested Citation

  • F. Magagnato & J. Dumond, 2013. "Large Eddy Simulation of Cavitating Flows Using a Novel Stochastic Field Formulation," Springer Books, in: Wolfgang E. Nagel & Dietmar H. Kröner & Michael M. Resch (ed.), High Performance Computing in Science and Engineering ‘13, edition 127, pages 361-375, Springer.
    • Handle: RePEc:spr:sprchp:978-3-319-02165-2_25
    DOI: 10.1007/978-3-319-02165-2_25
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