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Analytical study of Al2O3-Cu/water micropolar hybrid nanofluid in a porous channel with expanding/contracting walls in the presence of magnetic field

Analytical study of Al2O3-Cu/water micropolar hybrid nanofluid in a porous channel with expanding/contracting walls in the presence of magnetic field
Analytical study of Al2O3-Cu/water micropolar hybrid nanofluid in a porous channel with expanding/contracting walls in the presence of magnetic field
Forced convection fluid flow and heat transfer is investigated in a porous channel with expanding or contracting walls with which is filled Al2O3-Cu/water micropolar hybrid nanofluid in the presence of magnetic field. In order to solve the governing equations analytically, the least square method is employed. The hot bottom wall is cooled by the coolant fluid which is injected into the channel from the top wall. The range of nanoparticles volume fraction (90% Al2O3 and 10% Cu by volume) is between 0% and 2%. The effects of consequential parameters such as Reynolds number, Hartmann number, micro rotation factor and nanoparticles volume fraction on velocity and temperature profiles are examined. The results show that with increasing Reynolds number, the values of temperature and micro rotation profiles decrease. Furthermore, when the hybrid nanofluid is used compared to common nanofluid, the heat transfer coefficient will increase significantly. It is also observed that when the Hartmann number increases, Nusselt number increases, too.
Analytical study, Micropolar hybrid nanofluid, Least square method, Magnetic field, Porous channel
1026-3098
208-220
Mollamahdi, M.
f5e4ee46-787a-4f20-80ab-b651f5664266
Abbaszadeh, M.
594e03c0-a134-4b95-b1db-35171b8f0561
Sheikhzadeh, Gh A.
fcaf1201-3ba1-412f-a019-7b05395a7eda
Mollamahdi, M.
f5e4ee46-787a-4f20-80ab-b651f5664266
Abbaszadeh, M.
594e03c0-a134-4b95-b1db-35171b8f0561
Sheikhzadeh, Gh A.
fcaf1201-3ba1-412f-a019-7b05395a7eda

Mollamahdi, M., Abbaszadeh, M. and Sheikhzadeh, Gh A. (2018) Analytical study of Al2O3-Cu/water micropolar hybrid nanofluid in a porous channel with expanding/contracting walls in the presence of magnetic field. Scientia Iranica, 25 (1), 208-220. (doi:10.24200/sci.2017.4250).

Record type: Article

Abstract

Forced convection fluid flow and heat transfer is investigated in a porous channel with expanding or contracting walls with which is filled Al2O3-Cu/water micropolar hybrid nanofluid in the presence of magnetic field. In order to solve the governing equations analytically, the least square method is employed. The hot bottom wall is cooled by the coolant fluid which is injected into the channel from the top wall. The range of nanoparticles volume fraction (90% Al2O3 and 10% Cu by volume) is between 0% and 2%. The effects of consequential parameters such as Reynolds number, Hartmann number, micro rotation factor and nanoparticles volume fraction on velocity and temperature profiles are examined. The results show that with increasing Reynolds number, the values of temperature and micro rotation profiles decrease. Furthermore, when the hybrid nanofluid is used compared to common nanofluid, the heat transfer coefficient will increase significantly. It is also observed that when the Hartmann number increases, Nusselt number increases, too.

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More information

Published date: January 2018
Keywords: Analytical study, Micropolar hybrid nanofluid, Least square method, Magnetic field, Porous channel

Identifiers

Local EPrints ID: 445493
URI: http://eprints.soton.ac.uk/id/eprint/445493
ISSN: 1026-3098
PURE UUID: 528018ef-ae70-48c5-be26-fb196f9164a4
ORCID for M. Abbaszadeh: ORCID iD orcid.org/0000-0002-3736-2086

Catalogue record

Date deposited: 11 Dec 2020 17:30
Last modified: 16 Mar 2024 10:09

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Contributors

Author: M. Mollamahdi
Author: M. Abbaszadeh ORCID iD
Author: Gh A. Sheikhzadeh

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