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Unsteady magnetohydrodynamics (MHD) flow of hybrid ferrofluid due to a rotating disk

The flow of fluids over the boundaries of a rotating disc has many practical uses, including boundary-layer control and separation. Therefore, the aim of this study is to discuss the impact of unsteady magnetohydrodynamics (MHD) hybrid ferrofluid flow over a stretching/shrinking rotating disk. The t...

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主要な著者: Khashi’ie, Najiyah Safwa, Waini, Iskandar, Zainal, Nurul Amira, Hamzah, Khairum, Mohd Kasim, Abdul Rahman, Md Arifin, Norihan, Pop, Ioan Mihai
フォーマット: 論文
言語:English
出版事項: MDPI AG 2022
オンライン･アクセス:http://eprints.utem.edu.my/id/eprint/26786/3/WAINI%20ET%20AL.%202022%20-%20UNSTEADY%20ROTATING%20DISK%202-UTEM.PDF
http://eprints.utem.edu.my/id/eprint/26786/
https://www.mdpi.com/2227-7390/10/10/1658
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spelling my.utem.eprints.267862023-04-14T15:03:58Z http://eprints.utem.edu.my/id/eprint/26786/ Unsteady magnetohydrodynamics (MHD) flow of hybrid ferrofluid due to a rotating disk Khashi’ie, Najiyah Safwa Waini, Iskandar Zainal, Nurul Amira Hamzah, Khairum Mohd Kasim, Abdul Rahman Md Arifin, Norihan Pop, Ioan Mihai The flow of fluids over the boundaries of a rotating disc has many practical uses, including boundary-layer control and separation. Therefore, the aim of this study is to discuss the impact of unsteady magnetohydrodynamics (MHD) hybrid ferrofluid flow over a stretching/shrinking rotating disk. The time-dependent mathematical model is transformed into a set of ordinary differential equations (ODE’s) by using similarity variables. The bvp4c method in the MATLAB platform is utilised in order to solve the present model. Since the occurrence of more than one solution is presentable, an analysis of solution stabilities is conducted. Both solutions were surprisingly found to be stable. Meanwhile, the skin friction coefficient, heat transfer rate—in cooperation with velocity—and temperature profile distributions are examined for the progressing parameters. The findings reveal that the unsteadiness parameter causes the boundary layer thickness of the velocity and temperature distribution profile to decrease. A higher value of magnetic and mass flux parameter lowers the skin friction coefficient. In contrast, the addition of the unsteadiness parameter yields a supportive effect on the heat transfer rate. An increment of the magnetic parameter up to 30% reduces the skin friction coefficient by 15.98% and enhances the heat transfer rate approximately up to 1.88%, significantly. In contrast, the heat transfer is rapidly enhanced by improving the mass flux parameter by almost 20%. MDPI AG 2022-05-12 Article PeerReviewed text en http://eprints.utem.edu.my/id/eprint/26786/3/WAINI%20ET%20AL.%202022%20-%20UNSTEADY%20ROTATING%20DISK%202-UTEM.PDF Khashi’ie, Najiyah Safwa and Waini, Iskandar and Zainal, Nurul Amira and Hamzah, Khairum and Mohd Kasim, Abdul Rahman and Md Arifin, Norihan and Pop, Ioan Mihai (2022) Unsteady magnetohydrodynamics (MHD) flow of hybrid ferrofluid due to a rotating disk. Mathematics, 10 (10). pp. 1-20. ISSN 2227-7390 https://www.mdpi.com/2227-7390/10/10/1658 doi.org/10.3390/math10101658
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 The flow of fluids over the boundaries of a rotating disc has many practical uses, including boundary-layer control and separation. Therefore, the aim of this study is to discuss the impact of unsteady magnetohydrodynamics (MHD) hybrid ferrofluid flow over a stretching/shrinking rotating disk. The time-dependent mathematical model is transformed into a set of ordinary differential equations (ODE’s) by using similarity variables. The bvp4c method in the MATLAB platform is utilised in order to solve the present model. Since the occurrence of more than one solution is presentable, an analysis of solution stabilities is conducted. Both solutions were surprisingly found to be stable. Meanwhile, the skin friction coefficient, heat transfer rate—in cooperation with velocity—and temperature profile distributions are examined for the progressing parameters. The findings reveal that the unsteadiness parameter causes the boundary layer thickness of the velocity and temperature distribution profile to decrease. A higher value of magnetic and mass flux parameter lowers the skin friction coefficient. In contrast, the addition of the unsteadiness parameter yields a supportive effect on the heat transfer rate. An increment of the magnetic parameter up to 30% reduces the skin friction coefficient by 15.98% and enhances the heat transfer rate approximately up to 1.88%, significantly. In contrast, the heat transfer is rapidly enhanced by improving the mass flux parameter by almost 20%.
format Article
author Khashi’ie, Najiyah Safwa
Waini, Iskandar
Zainal, Nurul Amira
Hamzah, Khairum
Mohd Kasim, Abdul Rahman
Md Arifin, Norihan
Pop, Ioan Mihai
spellingShingle Khashi’ie, Najiyah Safwa
Waini, Iskandar
Zainal, Nurul Amira
Hamzah, Khairum
Mohd Kasim, Abdul Rahman
Md Arifin, Norihan
Pop, Ioan Mihai
Unsteady magnetohydrodynamics (MHD) flow of hybrid ferrofluid due to a rotating disk
author_facet Khashi’ie, Najiyah Safwa
Waini, Iskandar
Zainal, Nurul Amira
Hamzah, Khairum
Mohd Kasim, Abdul Rahman
Md Arifin, Norihan
Pop, Ioan Mihai
author_sort Khashi’ie, Najiyah Safwa
title Unsteady magnetohydrodynamics (MHD) flow of hybrid ferrofluid due to a rotating disk
title_short Unsteady magnetohydrodynamics (MHD) flow of hybrid ferrofluid due to a rotating disk
title_full Unsteady magnetohydrodynamics (MHD) flow of hybrid ferrofluid due to a rotating disk
title_fullStr Unsteady magnetohydrodynamics (MHD) flow of hybrid ferrofluid due to a rotating disk
title_full_unstemmed Unsteady magnetohydrodynamics (MHD) flow of hybrid ferrofluid due to a rotating disk
title_sort unsteady magnetohydrodynamics (mhd) flow of hybrid ferrofluid due to a rotating disk
publisher MDPI AG
publishDate 2022
url http://eprints.utem.edu.my/id/eprint/26786/3/WAINI%20ET%20AL.%202022%20-%20UNSTEADY%20ROTATING%20DISK%202-UTEM.PDF
http://eprints.utem.edu.my/id/eprint/26786/
https://www.mdpi.com/2227-7390/10/10/1658
_version_ 1763300021262876672
score 13.251813

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