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Lattice Boltzmann simulation of turbulent natural convection in a square cavity using Cu/water nanofluid

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Abstract

In this paper, lattice Boltzmann simulation of turbulent natural convection with large-eddy simulations (LES) in a square cavity which is filled by water/copper nanofluid has been investigated. The present results are validated by experimental data at Ra = 1.58×109. This study is conducted for high Rayleigh numbers (Ra = 107–109) and volume fractions of nanoparticles (0 ≤ Φ ≤ 0.06). In this research, the effects of nanoparticles are displayed on streamlines and isotherms counters, local and average Nusselt numbers. The average Nusselt number is enhanced by the augmentation of nanoparticle volume fraction in the base fluid while the manner has an erratic trend toward different Rayleigh numbers.

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Author information

Authors and Affiliations

  1. Department of Engineering, Shahid Bahonar University of Kerman, Kerman, Iran

    H. Sajjadi

  2. Department of Mechanical Engineering, Sirjan University of Technology, Sirjan, Iran

    M. Beigzadeh Abbassi

  3. School of Computer Science, Engineering and Mathematics, Flinders University, Adelaide, Australia

    GH. R. Kefayati

Authors
  1. H. Sajjadi
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  2. M. Beigzadeh Abbassi
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  3. GH. R. Kefayati
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Corresponding author

Correspondence to H. Sajjadi.

Additional information

Recommended by Associate Editor Yang Na

H. Sajjadi, Ph.D, student of Mechanical Engineering at Shahid Bahonar University, received M.S. degree from School of Mechanical Engineering at Babol University of Technology. He received his B.S. degree from School of Mechanical Engineering at Isfahan University of Technology. His main research interests are CFD, LBM, nanofluids, MHD, turbulent flow.

Gholamreza Kefayati, Ph.D, student of Mechanical Engineering at Flinders University. He received his M.S degree from School of Mechanical Engineering at Babol University of Technology. His main research interests are CFD, LBM, nanofluids, MHD, multiphase flow and non-Newtonian flow.

M. Beigzadeh Abbassi, received Diploma degree (previous continuous German Master progam) from Technische Universitat Clausthal-Zellerfeld, Germany. He received Ph.D. degree from Technische Universitat Berlin. Associate professor in Sirjan University of Technology. His main research interests are internal combustion engines and construction.

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Sajjadi, H., Beigzadeh Abbassi, M. & Kefayati, G.R. Lattice Boltzmann simulation of turbulent natural convection in a square cavity using Cu/water nanofluid. J Mech Sci Technol 27, 2341–2349 (2013). https://doi.org/10.1007/s12206-013-0618-5

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  • DOI: https://doi.org/10.1007/s12206-013-0618-5

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