THE EFFECT OF VARIABLE PROPERTIES ON RAYLEIGH-BENARD CONVECTION IN AN ENCLOSURE FILLED WITH AL2O3-EG-WATER NANOFLUID

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SHEIKHZADEH G.A.; GHAFFARI S.P.; FAKHARI M.

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Paper Information

Journal: INTERNATIONAL JOURNAL OF ENGINEERING Year:2013 | Volume:26 | Issue:12 (TRANSACTIONS C: ASPECTS) Page(s): 1411-1422

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Information Journal Paper

Title

THE EFFECT OF VARIABLE PROPERTIES ON RAYLEIGH-BENARD CONVECTION IN AN ENCLOSURE FILLED WITH AL2O3-EG-WATER NANOFLUID

Author(s)

SHEIKHZADEH G.A. | GHAFFARI S.P. | FAKHARI M. | Issue Writer Certificate

Keywords

NANOFLUID

VARIABLE PROPERTIES

RAYLEIGH-BENARD CONVECTION

AL2O3-ETHYLENE GLYCOL-WATER

ENCLOSURE

Abstract

In this paper, the natural convection heat transfer of Al2O3-EG-water NANOFLUID in a rectangular cavity heated from the bottom and cooled from the top has been investigated numerically. The governing equations for a Newtonian fluid have been solved numerically with a finite volume approach using the SIMPLER algorithm. The main focus of the current study is on the effects of the variable thermophysical properties of NANOFLUID on the natural convection heat transfer. The influence of pertinent parameters such as Rayleigh number (Ra=105-107) and volume fractions of nanoparticles (0£F£0.05) on the heat transfer characteristics of natural convection have been studied. The results have shown that the average Nusselt number is reduced by increasing the volume fraction of nanoparticles. To study the significance of temperature effect on thermophysical properties of NANOFLUID, the results obtained by using VARIABLE PROPERTIES of NANOFLUID are compared with those of constant properties.

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APA: Copy

SHEIKHZADEH, G.A., GHAFFARI, S.P., & FAKHARI, M.. (2013). THE EFFECT OF VARIABLE PROPERTIES ON RAYLEIGH-BENARD CONVECTION IN AN ENCLOSURE FILLED WITH AL₂O₃-EG-WATER NANOFLUID. INTERNATIONAL JOURNAL OF ENGINEERING, 26(12 (TRANSACTIONS C: ASPECTS)), 1411-1422. SID. https://sid.ir/paper/618019/en

Vancouver: Copy

SHEIKHZADEH G.A., GHAFFARI S.P., FAKHARI M.. THE EFFECT OF VARIABLE PROPERTIES ON RAYLEIGH-BENARD CONVECTION IN AN ENCLOSURE FILLED WITH AL₂O₃-EG-WATER NANOFLUID. INTERNATIONAL JOURNAL OF ENGINEERING[Internet]. 2013;26(12 (TRANSACTIONS C: ASPECTS)):1411-1422. Available from: https://sid.ir/paper/618019/en

IEEE: Copy

G.A. SHEIKHZADEH, S.P. GHAFFARI, and M. FAKHARI, “THE EFFECT OF VARIABLE PROPERTIES ON RAYLEIGH-BENARD CONVECTION IN AN ENCLOSURE FILLED WITH AL₂O₃-EG-WATER NANOFLUID,” INTERNATIONAL JOURNAL OF ENGINEERING, vol. 26, no. 12 (TRANSACTIONS C: ASPECTS), pp. 1411–1422, 2013, [Online]. Available: https://sid.ir/paper/618019/en

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