Ghalambaz, M, Mehryan, SAM, Izadpanahi, E et al. (2 more authors) (2019) MHD natural convection of Cu–Al2O3 water hybrid nanofluids in a cavity equally divided into two parts by a vertical flexible partition membrane. Journal of Thermal Analysis and Calorimetry, 138 (2). pp. 1723-1743. ISSN 1388-6150
Abstract
The aim of the present study is to investigate the effects of a hybrid nanofluid in a square cavity that is divided into two equal parts by a vertical flexible partition in the presence of a magnetic field. A numerical method called the Galerkin finite element method is utilized to solve the governing equations. The effects of different parameters, namely the Rayleigh number (106 ≤ Ra ≤ 108) and the Hartmann number (0.0 ≤ Ha ≤ 200) as well as the effects of nanoparticles concentration (0.0 ≤ φ ≤ 0.02) and magnetic field orientation (0 ≤ γ ≤ π), on the flow and heat transfer fields for the cases of pure fluid, nanofluid and hybrid nanofluid are investigated. The results indicate that the streamline patterns change remarkably and the convective heat transfer augments with increasing values of the Rayleigh number. Additionally, the maximum stress imposed on the flexible partition resulting from the interaction of the partition and pure fluid is more than those caused by the nanofluid and the hybrid nanofluid. Furthermore, the increase in the magnetic field strength decreases the fluid velocity in the cavity, which declines the fluid thermal mixing and heat transfer effects.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © Akadémiai Kiadó, Budapest, Hungary 2019. This is an author produced version of a paper published in Journal of Thermal Analysis and Calorimetry. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Flexible membrane; Alumina–Copper nanoparticles; Hybrid nanofluid; Magnetic field; Natural convection |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 06 Jan 2020 12:10 |
Last Modified: | 02 May 2020 00:38 |
Status: | Published |
Publisher: | Springer International Publishing |
Identification Number: | 10.1007/s10973-019-08258-w |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:155110 |