Free convection of magnetic nanofluid considering MFD viscosity effect

M. Sheikholeslami; M. M. Rashidi; T. Hayat; D. D. Ganji

doi:10.1016/j.molliq.2016.02.093

Free convection of magnetic nanofluid considering MFD viscosity effect

M. Sheikholeslami
, M. M. Rashidi
, T. Hayat
, D. D. Ganji

Babol Noshirvani University of Technology
Tongji University
Quaid-I-Azam University
Faculty of Sciences, King Abdulaziz University

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

282 Scopus citations

Abstract

In this study effect of magnetic field dependent (MFD) viscosity on free convection heat transfer of nanofluid in an enclosure is investigated. The bottom wall has constant flux heating element. Single phase nanofluid model is utilized considering Brownian motion. Control Volume based Finite Element Method is applied to simulate this problem. The effects of viscosity parameter, Hartmann number and Rayleigh number on hydrothermal behavior have been examined. Results show that Nusselt number is an increasing function of Rayleigh number and volume fraction of nanoparticle while it is a decreasing function of viscosity parameter and Hartmann number. Also it can be found that reduction of Nusselt number due to MFD viscosity effect are more sensible for high Rayleigh number and low Hartmann number.

Original language	English
Pages (from-to)	393-399
Number of pages	7
Journal	Journal of Molecular Liquids
Volume	218
DOIs	https://doi.org/10.1016/j.molliq.2016.02.093
State	Published - 1 Jun 2016
Externally published	Yes

Keywords

Brownian motion
CVFEM
MFD
MHD
Nanofluid

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10.1016/j.molliq.2016.02.093

Cite this

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title = "Free convection of magnetic nanofluid considering MFD viscosity effect",

abstract = "In this study effect of magnetic field dependent (MFD) viscosity on free convection heat transfer of nanofluid in an enclosure is investigated. The bottom wall has constant flux heating element. Single phase nanofluid model is utilized considering Brownian motion. Control Volume based Finite Element Method is applied to simulate this problem. The effects of viscosity parameter, Hartmann number and Rayleigh number on hydrothermal behavior have been examined. Results show that Nusselt number is an increasing function of Rayleigh number and volume fraction of nanoparticle while it is a decreasing function of viscosity parameter and Hartmann number. Also it can be found that reduction of Nusselt number due to MFD viscosity effect are more sensible for high Rayleigh number and low Hartmann number.",

keywords = "Brownian motion, CVFEM, MFD, MHD, Nanofluid",

author = "M. Sheikholeslami and Rashidi, \{M. M.\} and T. Hayat and Ganji, \{D. D.\}",

year = "2016",

month = jun,

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doi = "10.1016/j.molliq.2016.02.093",

language = "English",

volume = "218",

pages = "393--399",

journal = "Journal of Molecular Liquids",

issn = "0167-7322",

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}

TY - JOUR

T1 - Free convection of magnetic nanofluid considering MFD viscosity effect

AU - Sheikholeslami, M.

AU - Rashidi, M. M.

AU - Hayat, T.

AU - Ganji, D. D.

PY - 2016/6/1

Y1 - 2016/6/1

N2 - In this study effect of magnetic field dependent (MFD) viscosity on free convection heat transfer of nanofluid in an enclosure is investigated. The bottom wall has constant flux heating element. Single phase nanofluid model is utilized considering Brownian motion. Control Volume based Finite Element Method is applied to simulate this problem. The effects of viscosity parameter, Hartmann number and Rayleigh number on hydrothermal behavior have been examined. Results show that Nusselt number is an increasing function of Rayleigh number and volume fraction of nanoparticle while it is a decreasing function of viscosity parameter and Hartmann number. Also it can be found that reduction of Nusselt number due to MFD viscosity effect are more sensible for high Rayleigh number and low Hartmann number.

AB - In this study effect of magnetic field dependent (MFD) viscosity on free convection heat transfer of nanofluid in an enclosure is investigated. The bottom wall has constant flux heating element. Single phase nanofluid model is utilized considering Brownian motion. Control Volume based Finite Element Method is applied to simulate this problem. The effects of viscosity parameter, Hartmann number and Rayleigh number on hydrothermal behavior have been examined. Results show that Nusselt number is an increasing function of Rayleigh number and volume fraction of nanoparticle while it is a decreasing function of viscosity parameter and Hartmann number. Also it can be found that reduction of Nusselt number due to MFD viscosity effect are more sensible for high Rayleigh number and low Hartmann number.

KW - Brownian motion

KW - CVFEM

KW - MFD

KW - MHD

KW - Nanofluid

UR - https://www.scopus.com/pages/publications/84961665564

U2 - 10.1016/j.molliq.2016.02.093

DO - 10.1016/j.molliq.2016.02.093

M3 - Article

AN - SCOPUS:84961665564

SN - 0167-7322

VL - 218

SP - 393

EP - 399

JO - Journal of Molecular Liquids

JF - Journal of Molecular Liquids

ER -

Free convection of magnetic nanofluid considering MFD viscosity effect

Abstract

Keywords

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