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

h Sajjadi; B Abbasi; Gholamreza Kefayati

doi:10.1007/s12206-013-0618-5

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

h Sajjadi
, B Abbasi
, Gholamreza Kefayati

Research output: Contribution to journal › Article › peer-review

35 Citations (Scopus)

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.

Original language	English
Pages (from-to)	2341-2349
Number of pages	9
Journal	Journal of Mechanical Science and Technology
Volume	27
Issue number	8
DOIs	https://doi.org/10.1007/s12206-013-0618-5
Publication status	Published - Aug 2013

Keywords

Heat transfer
Lattice Boltzmann method
Nanofluid
Natural convection
Turbulence

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10.1007/s12206-013-0618-5

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

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.",

keywords = "Heat transfer, Lattice Boltzmann method, Nanofluid, Natural convection, Turbulence",

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AU - Abbasi, B

AU - Kefayati, Gholamreza

PY - 2013/8

Y1 - 2013/8

N2 - 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.

AB - 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.

KW - Heat transfer

KW - Lattice Boltzmann method

KW - Nanofluid

KW - Natural convection

KW - Turbulence

UR - https://www.scopus.com/pages/publications/84884524918

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DO - 10.1007/s12206-013-0618-5

M3 - Article

SN - 1976-3824

VL - 27

SP - 2341

EP - 2349

JO - Journal of Mechanical Science and Technology

JF - Journal of Mechanical Science and Technology

IS - 8

ER -

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

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Keywords

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