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Magnetohydrodynamic flow of carbon nanotubes and heat transfer over a moving thin needle: a numerical and research surface methodology

A steady flow of carbon nanotubes (CNTs) nanofluids and heat transfer past a horizontally moving thin needle are investigated under the influence of magnetohydrodynamic (MHD). Single-walled CNTs (SWCNTs) and multi-walled CNTs (MWCNTs) are the two main nanoparticles that represent CNTs. The slender n...

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Main Authors: Azlan Abdul Samat, Nazrul, Bachok, Norfifah, Md Arifin, Norihan
Format: Article
Language:English
Published: Ain Shams University 2024
Online Access:http://psasir.upm.edu.my/id/eprint/113354/1/113354.pdf
http://psasir.upm.edu.my/id/eprint/113354/
https://www.sciencedirect.com/science/article/pii/S2090447924002089
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spelling my.upm.eprints.1133542024-11-19T08:20:53Z http://psasir.upm.edu.my/id/eprint/113354/ Magnetohydrodynamic flow of carbon nanotubes and heat transfer over a moving thin needle: a numerical and research surface methodology Azlan Abdul Samat, Nazrul Bachok, Norfifah Md Arifin, Norihan A steady flow of carbon nanotubes (CNTs) nanofluids and heat transfer past a horizontally moving thin needle are investigated under the influence of magnetohydrodynamic (MHD). Single-walled CNTs (SWCNTs) and multi-walled CNTs (MWCNTs) are the two main nanoparticles that represent CNTs. The slender needle moves relative to the flow with parallel velocity in either the same or opposite direction. Using the similarity method, a system of partial differential equations (PDEs) subject to boundary conditions is converted into nondimensional ordinary equations (ODEs). The ODEs are then reduced to a first-order ODEs system and solved using the MATLAB R2022b bvp4c solver. On a numerical scale, the impacts of varying potential parameters, such as the magnetic, CNTs’ volume fraction, and moving parameters, on the velocity and temperature profiles, the skin friction, and heat transfer coefficients are investigated. Utilising response surface methodology (RSM), the optimisation of the response based on numerical experimentation of physical quantities is performed. The outcomes are depicted using tables and a graphical approach. Results indicate the existence of dual solutions when the needle travels in the opposite direction. Moreover, the increase in the magnetic parameter by 100% in the flow will increase both the skin friction and heat transfer coefficients by nearly 30% and 4%, respectively. Furthermore, when the value of the CNTs volume fraction increases by 100%, the heat transfer rate increases substantially by almost 33%. However, doubling the size of the thin needle can significantly reduce the skin friction coefficient by nearly 32%. RSM results demonstrate that the maximal heat transfer coefficient is generated at the highest values of the magnetic and CNTs’ volume friction parameters and the lowest value of the needle size parameter. Findings also show that SWCTNs are superior to MWCNTs both in the skin friction and heat transfer coefficients. When comparing the performance of water and kerosene, we find that water is less effective as a base fluid than kerosene. Ain Shams University 2024 Article PeerReviewed text en cc_by_nc_nd_4 http://psasir.upm.edu.my/id/eprint/113354/1/113354.pdf Azlan Abdul Samat, Nazrul and Bachok, Norfifah and Md Arifin, Norihan (2024) Magnetohydrodynamic flow of carbon nanotubes and heat transfer over a moving thin needle: a numerical and research surface methodology. Ain Shams Engineering Journal, 15 (8). art. no. 102833. pp. 1-19. ISSN 2090-4479 https://www.sciencedirect.com/science/article/pii/S2090447924002089 10.1016/j.asej.2024.102833
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description A steady flow of carbon nanotubes (CNTs) nanofluids and heat transfer past a horizontally moving thin needle are investigated under the influence of magnetohydrodynamic (MHD). Single-walled CNTs (SWCNTs) and multi-walled CNTs (MWCNTs) are the two main nanoparticles that represent CNTs. The slender needle moves relative to the flow with parallel velocity in either the same or opposite direction. Using the similarity method, a system of partial differential equations (PDEs) subject to boundary conditions is converted into nondimensional ordinary equations (ODEs). The ODEs are then reduced to a first-order ODEs system and solved using the MATLAB R2022b bvp4c solver. On a numerical scale, the impacts of varying potential parameters, such as the magnetic, CNTs’ volume fraction, and moving parameters, on the velocity and temperature profiles, the skin friction, and heat transfer coefficients are investigated. Utilising response surface methodology (RSM), the optimisation of the response based on numerical experimentation of physical quantities is performed. The outcomes are depicted using tables and a graphical approach. Results indicate the existence of dual solutions when the needle travels in the opposite direction. Moreover, the increase in the magnetic parameter by 100% in the flow will increase both the skin friction and heat transfer coefficients by nearly 30% and 4%, respectively. Furthermore, when the value of the CNTs volume fraction increases by 100%, the heat transfer rate increases substantially by almost 33%. However, doubling the size of the thin needle can significantly reduce the skin friction coefficient by nearly 32%. RSM results demonstrate that the maximal heat transfer coefficient is generated at the highest values of the magnetic and CNTs’ volume friction parameters and the lowest value of the needle size parameter. Findings also show that SWCTNs are superior to MWCNTs both in the skin friction and heat transfer coefficients. When comparing the performance of water and kerosene, we find that water is less effective as a base fluid than kerosene.
format Article
author Azlan Abdul Samat, Nazrul
Bachok, Norfifah
Md Arifin, Norihan
spellingShingle Azlan Abdul Samat, Nazrul
Bachok, Norfifah
Md Arifin, Norihan
Magnetohydrodynamic flow of carbon nanotubes and heat transfer over a moving thin needle: a numerical and research surface methodology
author_facet Azlan Abdul Samat, Nazrul
Bachok, Norfifah
Md Arifin, Norihan
author_sort Azlan Abdul Samat, Nazrul
title Magnetohydrodynamic flow of carbon nanotubes and heat transfer over a moving thin needle: a numerical and research surface methodology
title_short Magnetohydrodynamic flow of carbon nanotubes and heat transfer over a moving thin needle: a numerical and research surface methodology
title_full Magnetohydrodynamic flow of carbon nanotubes and heat transfer over a moving thin needle: a numerical and research surface methodology
title_fullStr Magnetohydrodynamic flow of carbon nanotubes and heat transfer over a moving thin needle: a numerical and research surface methodology
title_full_unstemmed Magnetohydrodynamic flow of carbon nanotubes and heat transfer over a moving thin needle: a numerical and research surface methodology
title_sort magnetohydrodynamic flow of carbon nanotubes and heat transfer over a moving thin needle: a numerical and research surface methodology
publisher Ain Shams University
publishDate 2024
url http://psasir.upm.edu.my/id/eprint/113354/1/113354.pdf
http://psasir.upm.edu.my/id/eprint/113354/
https://www.sciencedirect.com/science/article/pii/S2090447924002089
_version_ 1817844626404409344
score 13.244413

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