Magnetohydrodynamics unsteady separated stagnation-point (USSP) flow of a hybrid nanofluid on a moving plate

In view of the unique properties in the hybrid nanofluids, this working fluid has been widely applied in industrial and technological sectors along with the substantial growth of numerical and experimental studies. Hence, this study contributes to the thermal characteristics and flow behavior of mag...

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Main Authors: Khashi'ie, Najiyah Safwa, Wahid, Nur Syahirah, Md Arifin, Norihan, Pop, Ioan
Format: Article
Published: John Wiley & Sons 2022
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author Khashi'ie, Najiyah Safwa
Wahid, Nur Syahirah
Md Arifin, Norihan
Pop, Ioan
author_facet Khashi'ie, Najiyah Safwa
Wahid, Nur Syahirah
Md Arifin, Norihan
Pop, Ioan
author_sort Khashi'ie, Najiyah Safwa
collection UPM
description In view of the unique properties in the hybrid nanofluids, this working fluid has been widely applied in industrial and technological sectors along with the substantial growth of numerical and experimental studies. Hence, this study contributes to the thermal characteristics and flow behavior of magnetohydrodynamics (MHD) unsteady separated stagnation point (USSP) flow of Cu-Al2O3/water nanofluid in a two-dimensional system considering the shifting plate. The results are generated using the bvp4c package by first reducing the governing model. The results show that for the decelerating flow case, dual solutions exist while the steady and accelerating flow cases admit a unique solution. The critical values (separation from laminar to turbulent flow) and separation values (separation from attached flow solution/AFS to reverse flow solution/RFS) are observed and collected for different Hartmann number, acceleration parameter and fluids. The Cu-Al2O3/water nanofluid has the maximum thermal rate followed by Cu-water and pure water. Meanwhile, the magnetic field and acceleration parameter are also the contributing factors for the thermal enhancement and the expansion of the boundary layer separation.
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institution Universiti Putra Malaysia
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spelling upm.eprints-1021182024-03-15T07:41:36Z http://psasir.upm.edu.my/id/eprint/102118/ Magnetohydrodynamics unsteady separated stagnation-point (USSP) flow of a hybrid nanofluid on a moving plate Khashi'ie, Najiyah Safwa Wahid, Nur Syahirah Md Arifin, Norihan Pop, Ioan In view of the unique properties in the hybrid nanofluids, this working fluid has been widely applied in industrial and technological sectors along with the substantial growth of numerical and experimental studies. Hence, this study contributes to the thermal characteristics and flow behavior of magnetohydrodynamics (MHD) unsteady separated stagnation point (USSP) flow of Cu-Al2O3/water nanofluid in a two-dimensional system considering the shifting plate. The results are generated using the bvp4c package by first reducing the governing model. The results show that for the decelerating flow case, dual solutions exist while the steady and accelerating flow cases admit a unique solution. The critical values (separation from laminar to turbulent flow) and separation values (separation from attached flow solution/AFS to reverse flow solution/RFS) are observed and collected for different Hartmann number, acceleration parameter and fluids. The Cu-Al2O3/water nanofluid has the maximum thermal rate followed by Cu-water and pure water. Meanwhile, the magnetic field and acceleration parameter are also the contributing factors for the thermal enhancement and the expansion of the boundary layer separation. John Wiley & Sons 2022 Article PeerReviewed Khashi'ie, Najiyah Safwa and Wahid, Nur Syahirah and Md Arifin, Norihan and Pop, Ioan (2022) Magnetohydrodynamics unsteady separated stagnation-point (USSP) flow of a hybrid nanofluid on a moving plate. Journal of Applied Mathematics and Mechanics, 102 (6). art. no. 202100410. pp. 1-14. ISSN 0044-2267 https://onlinelibrary.wiley.com/doi/10.1002/zamm.202100410 10.1002/zamm.202100410
spellingShingle Khashi'ie, Najiyah Safwa
Wahid, Nur Syahirah
Md Arifin, Norihan
Pop, Ioan
Magnetohydrodynamics unsteady separated stagnation-point (USSP) flow of a hybrid nanofluid on a moving plate
title Magnetohydrodynamics unsteady separated stagnation-point (USSP) flow of a hybrid nanofluid on a moving plate
title_full Magnetohydrodynamics unsteady separated stagnation-point (USSP) flow of a hybrid nanofluid on a moving plate
title_fullStr Magnetohydrodynamics unsteady separated stagnation-point (USSP) flow of a hybrid nanofluid on a moving plate
title_full_unstemmed Magnetohydrodynamics unsteady separated stagnation-point (USSP) flow of a hybrid nanofluid on a moving plate
title_short Magnetohydrodynamics unsteady separated stagnation-point (USSP) flow of a hybrid nanofluid on a moving plate
title_sort magnetohydrodynamics unsteady separated stagnation point ussp flow of a hybrid nanofluid on a moving plate
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AT mdarifinnorihan magnetohydrodynamicsunsteadyseparatedstagnationpointusspflowofahybridnanofluidonamovingplate
AT popioan magnetohydrodynamicsunsteadyseparatedstagnationpointusspflowofahybridnanofluidonamovingplate