Effect of magnetic field on natural convection in a triangular enclosure filled with nanofluid

Amir Houshang Mahmoudi; Ioan Pop; Mina Shahi

doi:10.1016/j.ijthermalsci.2012.04.006

Effect of magnetic field on natural convection in a triangular enclosure filled with nanofluid

Amir Houshang Mahmoudi, Ioan Pop^*, Mina Shahi

^*Corresponding author for this work

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

118 Citations (Scopus)

Abstract

A numerical analysis of natural convection has been performed for a two-dimensional triangular enclosure with partially heated from below and cold inclined wall filled with nanofluid in presence of magnetic field. Governing equations are solved by finite volume method. Flow pattern, isotherms and average Nusselt number are presented for 0 < Ha<100, 10 ⁴ < Ra<10 ⁷,0<φ < 0.05 and six cases that are made by location of heat sources. The results show in presence of magnetic field flow field is suppressed and heat transfer decreases. Furthermore it is observed that maximum reduction of average Nusselt number in high value of Ha occurs at Ra = 10 ⁶. It is found the nanoparticles are more effective at Ra = 10 ⁴ where conduction is more pronounced.

Original language	English
Pages (from-to)	126-140
Number of pages	15
Journal	International journal of thermal sciences
Volume	59
DOIs	https://doi.org/10.1016/j.ijthermalsci.2012.04.006
Publication status	Published - Sep 2012

Keywords

MHD
Nanofluid
Natural convection
Numerical study
Triangular enclosure

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title = "Effect of magnetic field on natural convection in a triangular enclosure filled with nanofluid",

abstract = "A numerical analysis of natural convection has been performed for a two-dimensional triangular enclosure with partially heated from below and cold inclined wall filled with nanofluid in presence of magnetic field. Governing equations are solved by finite volume method. Flow pattern, isotherms and average Nusselt number are presented for 0 < Ha<100, 10 4 < Ra<10 7,0<φ < 0.05 and six cases that are made by location of heat sources. The results show in presence of magnetic field flow field is suppressed and heat transfer decreases. Furthermore it is observed that maximum reduction of average Nusselt number in high value of Ha occurs at Ra = 10 6. It is found the nanoparticles are more effective at Ra = 10 4 where conduction is more pronounced.",

keywords = "MHD, Nanofluid, Natural convection, Numerical study, Triangular enclosure",

author = "Mahmoudi, {Amir Houshang} and Ioan Pop and Mina Shahi",

year = "2012",

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journal = "International journal of thermal sciences",

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T1 - Effect of magnetic field on natural convection in a triangular enclosure filled with nanofluid

AU - Mahmoudi, Amir Houshang

AU - Pop, Ioan

AU - Shahi, Mina

PY - 2012/9

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N2 - A numerical analysis of natural convection has been performed for a two-dimensional triangular enclosure with partially heated from below and cold inclined wall filled with nanofluid in presence of magnetic field. Governing equations are solved by finite volume method. Flow pattern, isotherms and average Nusselt number are presented for 0 < Ha<100, 10 4 < Ra<10 7,0<φ < 0.05 and six cases that are made by location of heat sources. The results show in presence of magnetic field flow field is suppressed and heat transfer decreases. Furthermore it is observed that maximum reduction of average Nusselt number in high value of Ha occurs at Ra = 10 6. It is found the nanoparticles are more effective at Ra = 10 4 where conduction is more pronounced.

AB - A numerical analysis of natural convection has been performed for a two-dimensional triangular enclosure with partially heated from below and cold inclined wall filled with nanofluid in presence of magnetic field. Governing equations are solved by finite volume method. Flow pattern, isotherms and average Nusselt number are presented for 0 < Ha<100, 10 4 < Ra<10 7,0<φ < 0.05 and six cases that are made by location of heat sources. The results show in presence of magnetic field flow field is suppressed and heat transfer decreases. Furthermore it is observed that maximum reduction of average Nusselt number in high value of Ha occurs at Ra = 10 6. It is found the nanoparticles are more effective at Ra = 10 4 where conduction is more pronounced.

KW - MHD

KW - Nanofluid

KW - Natural convection

KW - Numerical study

KW - Triangular enclosure

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