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Simulation of a 2D Channel Flow Around a Square Obstacle with Lattice-Boltzmann (BGK) Automata

Author

Listed:
  • J. Bernsdorf

    (Institute of Fluid Mechanics (LSTM), University Erlangen – Nuremberg, Cauerstr. 4, D – 91058 Erlangen, Germany)

  • Th. Zeiser

    (Institute of Fluid Mechanics (LSTM), University Erlangen – Nuremberg, Cauerstr. 4, D – 91058 Erlangen, Germany)

  • G. Brenner

    (Institute of Fluid Mechanics (LSTM), University Erlangen – Nuremberg, Cauerstr. 4, D – 91058 Erlangen, Germany)

  • F. Durst

    (Institute of Fluid Mechanics (LSTM), University Erlangen – Nuremberg, Cauerstr. 4, D – 91058 Erlangen, Germany)

Abstract

Results for time-dependent, viscous, incompressible flows were investigated using the lattice-Boltzmann (BGK) automata. The decay of a synthetic turbulent flow field and the time evolution of an initial vortex were simulated for validation purposes. The focal point was the investigation of the instationary flow around a square obstacle in a two-dimensional channel for a range of Reynolds numbers between 80 and 300 and a blockage ratio of 0.125. The Strouhal number was measured for this case and found to be in the range of data given in the literature.

Suggested Citation

  • J. Bernsdorf & Th. Zeiser & G. Brenner & F. Durst, 1998. "Simulation of a 2D Channel Flow Around a Square Obstacle with Lattice-Boltzmann (BGK) Automata," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 9(08), pages 1129-1141.
    • Handle: RePEc:wsi:ijmpcx:v:09:y:1998:i:08:n:s0129183198001047
    DOI: 10.1142/S0129183198001047
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