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Effects of discharge concentration and convective boundary conditions on unsteady hybrid nanofluid flow in a porous medium

This study explores using hybrid nanofluids to improve water quality by enhancing heat transfer and substance decomposition. Nanofluids effectively remove pollutants, optimise heat transfer, control pollution sources, and regulate fluid dynamics, which can lead to efficient pollution management in w...

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Main Authors: Ouyang, Yun, Basir, Md Faisal Md, Naganthran, Kohilavani, Pop, Ioan
Format: Article
Published: Elsevier 2024
Subjects:
Q Science (General)
QA Mathematics
Online Access:http://eprints.um.edu.my/46982/
https://doi.org/10.1016/j.csite.2024.104374
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spelling my.um.eprints.469822025-01-09T03:17:29Z http://eprints.um.edu.my/46982/ Effects of discharge concentration and convective boundary conditions on unsteady hybrid nanofluid flow in a porous medium Ouyang, Yun Basir, Md Faisal Md Naganthran, Kohilavani Pop, Ioan Q Science (General) QA Mathematics This study explores using hybrid nanofluids to improve water quality by enhancing heat transfer and substance decomposition. Nanofluids effectively remove pollutants, optimise heat transfer, control pollution sources, and regulate fluid dynamics, which can lead to efficient pollution management in water systems. Thus, the present research examines the flow of an unsteady hybrid Al2O3-Cu/water 2 O 3 -Cu/water nanofluid near the stagnation region in a porous medium, considering the discharge concentration and convective boundary conditions. Governing equations in ordinary differential equations are obtained using similarity transformations. The BVP4C solver in MATLAB is employed to expose dual solutions. The volume fraction of copper (Wa2), a 2 ), the suction/injection parameter (S), S ), and the unsteadiness parameter (A), A ), collectively contribute to the delay of the boundary layer separation. Increasing the values of Wa2,A, a 2 , A , and S enhances convective heat transfer. When the sheet shrunk between the range of - 16.2 and -13, hybrid nanofluid has higher convective thermal transfer than nanofluid. Moreover, an increment in W a 2 and S raises the skin friction coefficients and mass diffusion rates. Stability analysis reveals that the first solution is stable while the second one is unstable. Elsevier 2024-06 Article PeerReviewed Ouyang, Yun and Basir, Md Faisal Md and Naganthran, Kohilavani and Pop, Ioan (2024) Effects of discharge concentration and convective boundary conditions on unsteady hybrid nanofluid flow in a porous medium. Case Studies in Thermal Engineering, 58. p. 104374. ISSN 2214-157X, DOI https://doi.org/10.1016/j.csite.2024.104374 <https://doi.org/10.1016/j.csite.2024.104374>. https://doi.org/10.1016/j.csite.2024.104374 10.1016/j.csite.2024.104374
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)
QA Mathematics
spellingShingle Q Science (General)
QA Mathematics
Ouyang, Yun
Basir, Md Faisal Md
Naganthran, Kohilavani
Pop, Ioan
Effects of discharge concentration and convective boundary conditions on unsteady hybrid nanofluid flow in a porous medium
description This study explores using hybrid nanofluids to improve water quality by enhancing heat transfer and substance decomposition. Nanofluids effectively remove pollutants, optimise heat transfer, control pollution sources, and regulate fluid dynamics, which can lead to efficient pollution management in water systems. Thus, the present research examines the flow of an unsteady hybrid Al2O3-Cu/water 2 O 3 -Cu/water nanofluid near the stagnation region in a porous medium, considering the discharge concentration and convective boundary conditions. Governing equations in ordinary differential equations are obtained using similarity transformations. The BVP4C solver in MATLAB is employed to expose dual solutions. The volume fraction of copper (Wa2), a 2 ), the suction/injection parameter (S), S ), and the unsteadiness parameter (A), A ), collectively contribute to the delay of the boundary layer separation. Increasing the values of Wa2,A, a 2 , A , and S enhances convective heat transfer. When the sheet shrunk between the range of - 16.2 and -13, hybrid nanofluid has higher convective thermal transfer than nanofluid. Moreover, an increment in W a 2 and S raises the skin friction coefficients and mass diffusion rates. Stability analysis reveals that the first solution is stable while the second one is unstable.
format Article
author Ouyang, Yun
Basir, Md Faisal Md
Naganthran, Kohilavani
Pop, Ioan
author_facet Ouyang, Yun
Basir, Md Faisal Md
Naganthran, Kohilavani
Pop, Ioan
author_sort Ouyang, Yun
title Effects of discharge concentration and convective boundary conditions on unsteady hybrid nanofluid flow in a porous medium
title_short Effects of discharge concentration and convective boundary conditions on unsteady hybrid nanofluid flow in a porous medium
title_full Effects of discharge concentration and convective boundary conditions on unsteady hybrid nanofluid flow in a porous medium
title_fullStr Effects of discharge concentration and convective boundary conditions on unsteady hybrid nanofluid flow in a porous medium
title_full_unstemmed Effects of discharge concentration and convective boundary conditions on unsteady hybrid nanofluid flow in a porous medium
title_sort effects of discharge concentration and convective boundary conditions on unsteady hybrid nanofluid flow in a porous medium
publisher Elsevier
publishDate 2024
url http://eprints.um.edu.my/46982/
https://doi.org/10.1016/j.csite.2024.104374
_version_ 1821105748623491072
score 13.244413

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