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Improvement Of Simpler Algorithm For Incompressible Flow On Staggered Grid System

Author

Listed:
  • T. S. LEE

    (Laboratory of Fluid Mechanics, Department of Mechanical Engineering, National University of Singapore, 119260, Singapore)

  • Y. P. CHENG

    (Laboratory of Fluid Mechanics, Department of Mechanical Engineering, National University of Singapore, 119260, Singapore)

  • H. T. LOW

    (Laboratory of Fluid Mechanics, Department of Mechanical Engineering, National University of Singapore, 119260, Singapore)

Abstract

In this paper, the updating of the intermediate velocity in the correction stage in SIMPLE-like algorithms on staggered grid is discussed in detail, based on the discussion CLEARER algorithm that is extended from the non-staggered grid to the staggered grid. The performance of SIMPLER and CLEARER algorithms are compared using two numerical examples with reliable solutions. The results show that CLEARER can predict the numerical results as accurately as SIMPLER, and it can also enhance the convergence rate greatly under low under-relaxation factors. In some cases CLEARER algorithm can only need 27% of iteration number required by SIMPLER to reach the same convergence criterion.

Suggested Citation

  • T. S. Lee & Y. P. Cheng & H. T. Low, 2007. "Improvement Of Simpler Algorithm For Incompressible Flow On Staggered Grid System," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 18(07), pages 1149-1155.
    • Handle: RePEc:wsi:ijmpcx:v:18:y:2007:i:07:n:s0129183107011182
    DOI: 10.1142/S0129183107011182
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