Unsteady MHD hybrid nanofluid flow towards a horizontal cylinder

Transport phenomena near the stagnation region are common in the manufacturing industry, especially in polymer and extrusion processes, which need continuous improvement to enhance the process's quality standard. Hence, the present numerical investigation aims to test the performance of unstead...

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Main Authors: Zainal, Nurul Amira, Nazar, Roslinda, Naganthran, Kohilavani, Pop, Ioan
Format: Article
Published: Elsevier 2022
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Online Access:http://eprints.um.edu.my/42896/
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spelling my.um.eprints.428962023-09-15T07:45:49Z http://eprints.um.edu.my/42896/ Unsteady MHD hybrid nanofluid flow towards a horizontal cylinder Zainal, Nurul Amira Nazar, Roslinda Naganthran, Kohilavani Pop, Ioan Q Science (General) TA Engineering (General). Civil engineering (General) Transport phenomena near the stagnation region are common in the manufacturing industry, especially in polymer and extrusion processes, which need continuous improvement to enhance the process's quality standard. Hence, the present numerical investigation aims to test the performance of unsteady stagnation-point flow past a stretching/shrinking horizontal cylinder in a hybrid nanofluid. The impact of a magnetic field on the boundary layer flow is also considered. The mathematical model that had been simplified is solved numerically via the MATLAB bvp4c procedure. Several decisions have arisen from the numerical findings of this study. The results reveal that as the concentration of nanoparticle volume fraction increases, which infers the transition of nano-fluid to hybrid nanofluids, a 2% increment in heat transfer rate is observed. The unsteadiness parameter clearly improves thermal performance by a 50:50 mixing ratio containing 2% of copper and alumina nanoparticles. Furthermore, increasing the curvature parameter evidently increases thermal efficiency by approximately 22.8%. On the other hand, increasing the magnetic parameter deteriorates thermal properties, leading to a drastic reduction in the heat transfer rate up to 32.6%. Finally, the initial solution's stability is confirmed by the stability analysis. Elsevier 2022-05 Article PeerReviewed Zainal, Nurul Amira and Nazar, Roslinda and Naganthran, Kohilavani and Pop, Ioan (2022) Unsteady MHD hybrid nanofluid flow towards a horizontal cylinder. International Communications in Heat and Mass Transfer, 134. ISSN 0735-1933, DOI https://doi.org/10.1016/j.icheatmasstransfer.2022.106020 <https://doi.org/10.1016/j.icheatmasstransfer.2022.106020>. 10.1016/j.icheatmasstransfer.2022.106020
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic Q Science (General)
TA Engineering (General). Civil engineering (General)
spellingShingle Q Science (General)
TA Engineering (General). Civil engineering (General)
Zainal, Nurul Amira
Nazar, Roslinda
Naganthran, Kohilavani
Pop, Ioan
Unsteady MHD hybrid nanofluid flow towards a horizontal cylinder
description Transport phenomena near the stagnation region are common in the manufacturing industry, especially in polymer and extrusion processes, which need continuous improvement to enhance the process's quality standard. Hence, the present numerical investigation aims to test the performance of unsteady stagnation-point flow past a stretching/shrinking horizontal cylinder in a hybrid nanofluid. The impact of a magnetic field on the boundary layer flow is also considered. The mathematical model that had been simplified is solved numerically via the MATLAB bvp4c procedure. Several decisions have arisen from the numerical findings of this study. The results reveal that as the concentration of nanoparticle volume fraction increases, which infers the transition of nano-fluid to hybrid nanofluids, a 2% increment in heat transfer rate is observed. The unsteadiness parameter clearly improves thermal performance by a 50:50 mixing ratio containing 2% of copper and alumina nanoparticles. Furthermore, increasing the curvature parameter evidently increases thermal efficiency by approximately 22.8%. On the other hand, increasing the magnetic parameter deteriorates thermal properties, leading to a drastic reduction in the heat transfer rate up to 32.6%. Finally, the initial solution's stability is confirmed by the stability analysis.
format Article
author Zainal, Nurul Amira
Nazar, Roslinda
Naganthran, Kohilavani
Pop, Ioan
author_facet Zainal, Nurul Amira
Nazar, Roslinda
Naganthran, Kohilavani
Pop, Ioan
author_sort Zainal, Nurul Amira
title Unsteady MHD hybrid nanofluid flow towards a horizontal cylinder
title_short Unsteady MHD hybrid nanofluid flow towards a horizontal cylinder
title_full Unsteady MHD hybrid nanofluid flow towards a horizontal cylinder
title_fullStr Unsteady MHD hybrid nanofluid flow towards a horizontal cylinder
title_full_unstemmed Unsteady MHD hybrid nanofluid flow towards a horizontal cylinder
title_sort unsteady mhd hybrid nanofluid flow towards a horizontal cylinder
publisher Elsevier
publishDate 2022
url http://eprints.um.edu.my/42896/
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score 13.251813