Numerical simulation of free convection based on experimental measured conductivity in a square cavity using Water/SiO2 nanofluid

M. Jahanshahi; S. F. Hosseinizadeh; M. Alipanah; A. Dehghani; G. R. Vakilinejad

doi:10.1016/j.icheatmasstransfer.2010.03.010

Numerical simulation of free convection based on experimental measured conductivity in a square cavity using Water/SiO₂ nanofluid

M. Jahanshahi, S. F. Hosseinizadeh^*, M. Alipanah, A. Dehghani, G. R. Vakilinejad

^*Corresponding author for this work

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

205 Citations (Scopus)

Abstract

Heat transfer enhancement has been investigated in a square cavity subject to different side wall temperatures using water/SiO₂ nanofluid. An experimental setup has been used to extract the conductivity value of nanofluid. This study has been carried out for the pertinent parameters in the following ranges: the Rayleigh number of base fluid, Ra_f=10⁵-10⁷ and the volumetric fraction of nanoparticle between 0 and 4%. The comparisons show that the mean Nusselt number increases with volume fraction for the whole range of Rayleigh numbers. Although by using the theoretical formulations for conductivity no enhancement has been observed.

Original language	English
Pages (from-to)	687-694
Number of pages	8
Journal	International Communications in Heat and Mass Transfer
Volume	37
Issue number	6
DOIs	https://doi.org/10.1016/j.icheatmasstransfer.2010.03.010
Publication status	Published - Jul 2010
Externally published	Yes

Keywords

Experimental
Free convection
Heat transfer
Nanofluid
Square cavity

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
General Chemical Engineering
Condensed Matter Physics

Access to Document

10.1016/j.icheatmasstransfer.2010.03.010

Cite this

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title = "Numerical simulation of free convection based on experimental measured conductivity in a square cavity using Water/SiO2 nanofluid",

abstract = "Heat transfer enhancement has been investigated in a square cavity subject to different side wall temperatures using water/SiO2 nanofluid. An experimental setup has been used to extract the conductivity value of nanofluid. This study has been carried out for the pertinent parameters in the following ranges: the Rayleigh number of base fluid, Raf=105-107 and the volumetric fraction of nanoparticle between 0 and 4%. The comparisons show that the mean Nusselt number increases with volume fraction for the whole range of Rayleigh numbers. Although by using the theoretical formulations for conductivity no enhancement has been observed.",

keywords = "Experimental, Free convection, Heat transfer, Nanofluid, Square cavity",

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AU - Jahanshahi, M.

AU - Hosseinizadeh, S. F.

AU - Alipanah, M.

AU - Dehghani, A.

AU - Vakilinejad, G. R.

PY - 2010/7

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AB - Heat transfer enhancement has been investigated in a square cavity subject to different side wall temperatures using water/SiO2 nanofluid. An experimental setup has been used to extract the conductivity value of nanofluid. This study has been carried out for the pertinent parameters in the following ranges: the Rayleigh number of base fluid, Raf=105-107 and the volumetric fraction of nanoparticle between 0 and 4%. The comparisons show that the mean Nusselt number increases with volume fraction for the whole range of Rayleigh numbers. Although by using the theoretical formulations for conductivity no enhancement has been observed.

KW - Experimental

KW - Free convection

KW - Heat transfer

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KW - Square cavity

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