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Micropolar nanofluid flow in a stagnation region of a shrinking sheet with Fe3O4 nanoparticles

Conventional liquids have poor thermal conductivity, thus limiting their use in engineering. Therefore, scientists and researchers have created nanofluids, which consist of nanoparticles dispersed in a base fluid, to improve heat transfer properties in various fields, such as electronics, medicine,...

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Main Authors: Ishak, Anuar, Waini, Iskandar, Yian, Yian Lok, Pop, Ioan
Format: Article
Language:English
Published: MDPI 2022
Online Access:http://eprints.utem.edu.my/id/eprint/26288/2/WAINI2022%20MATHEMATICS-10-03184.PDF
http://eprints.utem.edu.my/id/eprint/26288/
https://www.mdpi.com/2227-7390/10/17/3184
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spelling my.utem.eprints.262882023-03-03T15:54:28Z http://eprints.utem.edu.my/id/eprint/26288/ Micropolar nanofluid flow in a stagnation region of a shrinking sheet with Fe3O4 nanoparticles Ishak, Anuar Waini, Iskandar Yian, Yian Lok Pop, Ioan Conventional liquids have poor thermal conductivity, thus limiting their use in engineering. Therefore, scientists and researchers have created nanofluids, which consist of nanoparticles dispersed in a base fluid, to improve heat transfer properties in various fields, such as electronics, medicine, and molten metals. In this study, we examine the micropolar nanofluid flow in a stagnation region of a stretching/shrinking sheet by employing the modified Buongiorno nanofluid model. The nanofluid consists of magnetite (Fe3O4) nanoparticles. The similarity equations are solved numerically using MATLAB software. The solution is unique for the shrinking strength (Formula presented.). Two solutions are found for the limited range of (Formula presented.) when (Formula presented.). The solutions terminate at (Formula presented.) in the shrinking region. The rise in micropolar parameter (Formula presented.) contributes to the increment in the skin friction coefficient (Formula presented.) and the couple stress (Formula presented.), but the Nusselt number (Formula presented.) and the Sherwood number (Formula presented.) decrease. These physical quantities intensify with the rise in the magnetic parameter (Formula presented.). Finally, we investigated the stability of the solutions over time. This work contributes to the dual solution and time stability analysis of the current problem. In addition, critical values of the main physical parameters are also presented. These critical values are usually known as the separation values from laminar to turbulent boundary layer flows. In this case, once the critical value is achieved, the process for the specific product can be planned according to the desired output to optimize the productivity. MDPI 2022-09 Article PeerReviewed text en http://eprints.utem.edu.my/id/eprint/26288/2/WAINI2022%20MATHEMATICS-10-03184.PDF Ishak, Anuar and Waini, Iskandar and Yian, Yian Lok and Pop, Ioan (2022) Micropolar nanofluid flow in a stagnation region of a shrinking sheet with Fe3O4 nanoparticles. Mathematics, 10 (17). 01-19. ISSN 2227-7390 https://www.mdpi.com/2227-7390/10/17/3184 10.3390/math10173184
institution Universiti Teknikal Malaysia Melaka
building UTEM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknikal Malaysia Melaka
content_source UTEM Institutional Repository
url_provider http://eprints.utem.edu.my/
language English
description Conventional liquids have poor thermal conductivity, thus limiting their use in engineering. Therefore, scientists and researchers have created nanofluids, which consist of nanoparticles dispersed in a base fluid, to improve heat transfer properties in various fields, such as electronics, medicine, and molten metals. In this study, we examine the micropolar nanofluid flow in a stagnation region of a stretching/shrinking sheet by employing the modified Buongiorno nanofluid model. The nanofluid consists of magnetite (Fe3O4) nanoparticles. The similarity equations are solved numerically using MATLAB software. The solution is unique for the shrinking strength (Formula presented.). Two solutions are found for the limited range of (Formula presented.) when (Formula presented.). The solutions terminate at (Formula presented.) in the shrinking region. The rise in micropolar parameter (Formula presented.) contributes to the increment in the skin friction coefficient (Formula presented.) and the couple stress (Formula presented.), but the Nusselt number (Formula presented.) and the Sherwood number (Formula presented.) decrease. These physical quantities intensify with the rise in the magnetic parameter (Formula presented.). Finally, we investigated the stability of the solutions over time. This work contributes to the dual solution and time stability analysis of the current problem. In addition, critical values of the main physical parameters are also presented. These critical values are usually known as the separation values from laminar to turbulent boundary layer flows. In this case, once the critical value is achieved, the process for the specific product can be planned according to the desired output to optimize the productivity.
format Article
author Ishak, Anuar
Waini, Iskandar
Yian, Yian Lok
Pop, Ioan
spellingShingle Ishak, Anuar
Waini, Iskandar
Yian, Yian Lok
Pop, Ioan
Micropolar nanofluid flow in a stagnation region of a shrinking sheet with Fe3O4 nanoparticles
author_facet Ishak, Anuar
Waini, Iskandar
Yian, Yian Lok
Pop, Ioan
author_sort Ishak, Anuar
title Micropolar nanofluid flow in a stagnation region of a shrinking sheet with Fe3O4 nanoparticles
title_short Micropolar nanofluid flow in a stagnation region of a shrinking sheet with Fe3O4 nanoparticles
title_full Micropolar nanofluid flow in a stagnation region of a shrinking sheet with Fe3O4 nanoparticles
title_fullStr Micropolar nanofluid flow in a stagnation region of a shrinking sheet with Fe3O4 nanoparticles
title_full_unstemmed Micropolar nanofluid flow in a stagnation region of a shrinking sheet with Fe3O4 nanoparticles
title_sort micropolar nanofluid flow in a stagnation region of a shrinking sheet with fe3o4 nanoparticles
publisher MDPI
publishDate 2022
url http://eprints.utem.edu.my/id/eprint/26288/2/WAINI2022%20MATHEMATICS-10-03184.PDF
http://eprints.utem.edu.my/id/eprint/26288/
https://www.mdpi.com/2227-7390/10/17/3184
_version_ 1759693063094009856
score 13.211869

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