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Simulation Of Natural Convection In A Square Cavity By Taylor Series Expansion- And Least Squares-Based Lattice Boltzmann Method

Author

Listed:
  • C. SHU

    (Department of Mechanical Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260, Singapore)

  • Y. PENG

    (Department of Mechanical Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260, Singapore)

  • Y. T. CHEW

    (Department of Mechanical Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260, Singapore)

Abstract

The Taylor series expansion- and least squares-based lattice Boltzmann method (TLLBM) was used in this paper to extend the current thermal model to an arbitrary geometry so that it can be used to solve practical thermo-hydrodynamics in the incompressible limit. The new explicit method is based on the standard lattice Boltzmann method (LBM), Taylor series expansion and the least squares approach. The final formulation is an algebraic form and essentially has no limitation on the mesh structure and lattice model. Numerical simulations of natural convection in a square cavity on both uniform and nonuniform grids have been carried out. Favorable results were obtained and compared well with the benchmark data. It was found that, to get the same order of accuracy, the number of mesh points used on the nonuniform grid is much less than that used on the uniform grid.

Suggested Citation

  • C. Shu & Y. Peng & Y. T. Chew, 2002. "Simulation Of Natural Convection In A Square Cavity By Taylor Series Expansion- And Least Squares-Based Lattice Boltzmann Method," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 13(10), pages 1399-1414.
    • Handle: RePEc:wsi:ijmpcx:v:13:y:2002:i:10:n:s0129183102003966
    DOI: 10.1142/S0129183102003966
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    Cited by:

    1. Saleh A. Bawazeer & Saleh S. Baakeem & Abdulmajeed A. Mohamad, 2022. "Integrating a Stabilized Radial Basis Function Method with Lattice Boltzmann Method," Mathematics, MDPI, vol. 10(3), pages 1-16, February.

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