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Scalability of OpenFOAM with Large Eddy Simulations and DNS on High-Performance Systems

In: High Performance Computing in Science and Engineering ´16

Author

Listed:
  • Gabriel Axtmann

    (Institute of Aerodynamics and Gas Dynamics)

  • Ulrich Rist

    (Institute of Aerodynamics and Gas Dynamics)

Abstract

OpenFOAM (Open Field Operation and Manipulation) is a complete open-source framework for the solution of Partial Differential Equations (PDE) using the Finite Volume Method. It is one of the most popular open source tools used in Continuum Mechanics and Computational Fluid Dynamics (CFD). In this study, we used DirectNumerical Simulation and Large Eddy Simulation to investigate the scalability and MPI characteristics of OpenFOAM. Semi-implicit methods were applied to two representative benchmark problems. Three-dimensional laminar cavity flow, solved by direct numerical simulation, and turbulent backward facing step, solved by LES. The latter problem represents a configuration with common features found in many engineering applications. Strong and weak scaling behaviour using GNU and Intel compiler are compared and MPI routines are traced by CRAY’s profiling tools in detail.

Suggested Citation

  • Gabriel Axtmann & Ulrich Rist, 2016. "Scalability of OpenFOAM with Large Eddy Simulations and DNS on High-Performance Systems," Springer Books, in: Wolfgang E. Nagel & Dietmar H. Kröner & Michael M. Resch (ed.), High Performance Computing in Science and Engineering ´16, pages 413-424, Springer.
    • Handle: RePEc:spr:sprchp:978-3-319-47066-5_28
    DOI: 10.1007/978-3-319-47066-5_28
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