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Stability analysis of unsteady mixed convection flow near the stagnation point with buoyancy effect

This numerical study investigates the behaviour of the unsteady mixed convection flow and heat transfer near the stagnation region past a vertical plate in Al2O3-Cu/H2O hybrid nanofluids. By choosing an appropriate similarity transformation, an ordinary differential equations system is obtained, hen...

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Main Authors: Nazar, Roslinda, Zainal, Nurul Amira, Naganthran, Kohilavani
Format: Article
Language:English
Published: Penerbit Akademia Baru 2023
Online Access:http://eprints.utem.edu.my/id/eprint/28127/2/022842203202347.pdf
http://eprints.utem.edu.my/id/eprint/28127/
https://semarakilmu.com.my/journals/index.php/CFD_Letters/article/view/702
https://doi.org/10.37934/cfdl.15.5.5464
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spelling my.utem.eprints.281272025-01-06T10:56:16Z http://eprints.utem.edu.my/id/eprint/28127/ Stability analysis of unsteady mixed convection flow near the stagnation point with buoyancy effect Nazar, Roslinda Zainal, Nurul Amira Naganthran, Kohilavani This numerical study investigates the behaviour of the unsteady mixed convection flow and heat transfer near the stagnation region past a vertical plate in Al2O3-Cu/H2O hybrid nanofluids. By choosing an appropriate similarity transformation, an ordinary differential equations system is obtained, hence scrutinized via the bvp4c package embedded in the MATLAB program. The results show that as the nanoparticle volume fraction and unsteadiness parameter increase, the fluid's skin friction coefficient also increases. Also, an increase in the nanoparticle volume fraction and unsteadiness parameter has broadened the range of solutions hence, delayed the progress of boundary layer separation. In addition, the presence of the unsteadiness parameter provides a significant result in the thermal system. The first solution is declared stable by the stability analysis. Penerbit Akademia Baru 2023 Article PeerReviewed text en http://eprints.utem.edu.my/id/eprint/28127/2/022842203202347.pdf Nazar, Roslinda and Zainal, Nurul Amira and Naganthran, Kohilavani (2023) Stability analysis of unsteady mixed convection flow near the stagnation point with buoyancy effect. CFD Letters, 15 (5). pp. 54-64. ISSN 2180-1363 https://semarakilmu.com.my/journals/index.php/CFD_Letters/article/view/702 https://doi.org/10.37934/cfdl.15.5.5464
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 This numerical study investigates the behaviour of the unsteady mixed convection flow and heat transfer near the stagnation region past a vertical plate in Al2O3-Cu/H2O hybrid nanofluids. By choosing an appropriate similarity transformation, an ordinary differential equations system is obtained, hence scrutinized via the bvp4c package embedded in the MATLAB program. The results show that as the nanoparticle volume fraction and unsteadiness parameter increase, the fluid's skin friction coefficient also increases. Also, an increase in the nanoparticle volume fraction and unsteadiness parameter has broadened the range of solutions hence, delayed the progress of boundary layer separation. In addition, the presence of the unsteadiness parameter provides a significant result in the thermal system. The first solution is declared stable by the stability analysis.
format Article
author Nazar, Roslinda
Zainal, Nurul Amira
Naganthran, Kohilavani
spellingShingle Nazar, Roslinda
Zainal, Nurul Amira
Naganthran, Kohilavani
Stability analysis of unsteady mixed convection flow near the stagnation point with buoyancy effect
author_facet Nazar, Roslinda
Zainal, Nurul Amira
Naganthran, Kohilavani
author_sort Nazar, Roslinda
title Stability analysis of unsteady mixed convection flow near the stagnation point with buoyancy effect
title_short Stability analysis of unsteady mixed convection flow near the stagnation point with buoyancy effect
title_full Stability analysis of unsteady mixed convection flow near the stagnation point with buoyancy effect
title_fullStr Stability analysis of unsteady mixed convection flow near the stagnation point with buoyancy effect
title_full_unstemmed Stability analysis of unsteady mixed convection flow near the stagnation point with buoyancy effect
title_sort stability analysis of unsteady mixed convection flow near the stagnation point with buoyancy effect
publisher Penerbit Akademia Baru
publishDate 2023
url http://eprints.utem.edu.my/id/eprint/28127/2/022842203202347.pdf
http://eprints.utem.edu.my/id/eprint/28127/
https://semarakilmu.com.my/journals/index.php/CFD_Letters/article/view/702
https://doi.org/10.37934/cfdl.15.5.5464
_version_ 1821007583751700480
score 13.244413

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