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Lattice-Boltzmann computation of natural convection in a partitioned enclosure with inclined partitions attached to its hot wall

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  • Jami, Mohammed
  • Mezrhab, Ahmed
  • Bouzidi, M’hamed
  • Lallemand, Pierre

Abstract

This study presents a numerical investigation of laminar natural convection heat transfer in an inclined enclosure, differentially heated, with inclined partitions attached to its hot wall. The top and bottom walls of the cavity are insulated. Numerical solutions are obtained by using the hybrid lattice-Boltzmann method finite-difference. Effects of partition length, partition inclination angle, partitions number and aspect ratio cavity are studied for Prandtl number 0.71 and cavity inclination angles of 45∘ and 90∘. Rayleigh numbers considered are 5×105 for a square cavity and 104 for a cavity with an aspect ratio equal to 6. Results are reported in terms of isotherms, streamlines, local and average Nusselt numbers.

Suggested Citation

  • Jami, Mohammed & Mezrhab, Ahmed & Bouzidi, M’hamed & Lallemand, Pierre, 2006. "Lattice-Boltzmann computation of natural convection in a partitioned enclosure with inclined partitions attached to its hot wall," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 368(2), pages 481-494.
    • Handle: RePEc:eee:phsmap:v:368:y:2006:i:2:p:481-494
    DOI: 10.1016/j.physa.2005.12.029
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    Cited by:

    1. Wu, Ying-Ying & Wu, Shuang-Ying & Xiao, Lan, 2018. "Heat dissipation characteristics from photovoltaic cells within the partitioned or non-partitioned glazed cavity to the windy environment," Renewable Energy, Elsevier, vol. 127(C), pages 642-652.
    2. Mojtaba Aghajani Delavar & Junye Wang, 2021. "Lattice Boltzmann Method in Modeling Biofilm Formation, Growth and Detachment," Sustainability, MDPI, vol. 13(14), pages 1-23, July.
    3. Dadvand, Abdolrahman & Saraei, Sina Hassanzadeh & Ghoreishi, Soheila & Chamkha, Ali J., 2021. "Lattice Boltzmann simulation of natural convection in a square enclosure with discrete heating," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 179(C), pages 265-278.
    4. Bettaibi, Soufiene & Kuznik, Frédéric & Sediki, Ezeddine, 2016. "Hybrid LBM-MRT model coupled with finite difference method for double-diffusive mixed convection in rectangular enclosure with insulated moving lid," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 444(C), pages 311-326.

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