Cargando…

Impact of freezing temperature (T(fr)) of Al(2)O(3) and molecular diameter (H(2)O)(d) on thermal enhancement in magnetized and radiative nanofluid with mixed convection

The dynamics of nanofluid by considering the role of imposed Lorentz forces, thermal radiations and velocity slip effects over a vertically convectively heated surface is a topic of huge interest. Therefore, the said study is conducted for Al(2)O(3)-H(2)O nanofluid. Mathematical modelling of the pro...

Descripción completa

Detalles Bibliográficos
Autores principales: Adnan, Ashraf, Waqas, Khan, Umar, Al-Johani, Amnah S., Ahmed, Naveed, Mohyud-Din, Syed Tauseef, Khan, Ilyas, Andualem, Mulugeta
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8758704/
https://www.ncbi.nlm.nih.gov/pubmed/35027610
http://dx.doi.org/10.1038/s41598-021-04587-9
_version_ 1784632970595794944
author Adnan
Ashraf, Waqas
Khan, Umar
Al-Johani, Amnah S.
Ahmed, Naveed
Mohyud-Din, Syed Tauseef
Khan, Ilyas
Andualem, Mulugeta
author_facet Adnan
Ashraf, Waqas
Khan, Umar
Al-Johani, Amnah S.
Ahmed, Naveed
Mohyud-Din, Syed Tauseef
Khan, Ilyas
Andualem, Mulugeta
author_sort Adnan
collection PubMed
description The dynamics of nanofluid by considering the role of imposed Lorentz forces, thermal radiations and velocity slip effects over a vertically convectively heated surface is a topic of huge interest. Therefore, the said study is conducted for Al(2)O(3)-H(2)O nanofluid. Mathematical modelling of the problem is done via nanofluid effective correlations comprising the influences of freezing temperature, molecular diameter and similarity transformations. The results for multiple parameters are plotted and provide comprehensive discussion. From the analysis, it is examined that Al(2)O(3)-H(2)O nanofluid motion drops by strengthening Lorentz forces. The temperature in the nanofluid (Al(2)O(3)-H(2)O) is improved by inducing viscous dissipation effects (Ec number), surface convection (Biot number) and thermal radiations (Rd). Moreover, the shear stresses at the surface decreased due to higher magnetic field effects and rises due to velocity slip. A significant rise in Local Nusselt number is observed due to thermal radiations and Biot effects. Finally, enhanced heat transport mechanism in Al(2)O(3)-H(2)O is examined than a conventional liquid. Therefore, nanofluids are better for industrial applications and the uses of conventional liquids are limited due to low thermal conductivity.
format Online
Article
Text
id pubmed-8758704
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-87587042022-01-14 Impact of freezing temperature (T(fr)) of Al(2)O(3) and molecular diameter (H(2)O)(d) on thermal enhancement in magnetized and radiative nanofluid with mixed convection Adnan Ashraf, Waqas Khan, Umar Al-Johani, Amnah S. Ahmed, Naveed Mohyud-Din, Syed Tauseef Khan, Ilyas Andualem, Mulugeta Sci Rep Article The dynamics of nanofluid by considering the role of imposed Lorentz forces, thermal radiations and velocity slip effects over a vertically convectively heated surface is a topic of huge interest. Therefore, the said study is conducted for Al(2)O(3)-H(2)O nanofluid. Mathematical modelling of the problem is done via nanofluid effective correlations comprising the influences of freezing temperature, molecular diameter and similarity transformations. The results for multiple parameters are plotted and provide comprehensive discussion. From the analysis, it is examined that Al(2)O(3)-H(2)O nanofluid motion drops by strengthening Lorentz forces. The temperature in the nanofluid (Al(2)O(3)-H(2)O) is improved by inducing viscous dissipation effects (Ec number), surface convection (Biot number) and thermal radiations (Rd). Moreover, the shear stresses at the surface decreased due to higher magnetic field effects and rises due to velocity slip. A significant rise in Local Nusselt number is observed due to thermal radiations and Biot effects. Finally, enhanced heat transport mechanism in Al(2)O(3)-H(2)O is examined than a conventional liquid. Therefore, nanofluids are better for industrial applications and the uses of conventional liquids are limited due to low thermal conductivity. Nature Publishing Group UK 2022-01-13 /pmc/articles/PMC8758704/ /pubmed/35027610 http://dx.doi.org/10.1038/s41598-021-04587-9 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Adnan
Ashraf, Waqas
Khan, Umar
Al-Johani, Amnah S.
Ahmed, Naveed
Mohyud-Din, Syed Tauseef
Khan, Ilyas
Andualem, Mulugeta
Impact of freezing temperature (T(fr)) of Al(2)O(3) and molecular diameter (H(2)O)(d) on thermal enhancement in magnetized and radiative nanofluid with mixed convection
title Impact of freezing temperature (T(fr)) of Al(2)O(3) and molecular diameter (H(2)O)(d) on thermal enhancement in magnetized and radiative nanofluid with mixed convection
title_full Impact of freezing temperature (T(fr)) of Al(2)O(3) and molecular diameter (H(2)O)(d) on thermal enhancement in magnetized and radiative nanofluid with mixed convection
title_fullStr Impact of freezing temperature (T(fr)) of Al(2)O(3) and molecular diameter (H(2)O)(d) on thermal enhancement in magnetized and radiative nanofluid with mixed convection
title_full_unstemmed Impact of freezing temperature (T(fr)) of Al(2)O(3) and molecular diameter (H(2)O)(d) on thermal enhancement in magnetized and radiative nanofluid with mixed convection
title_short Impact of freezing temperature (T(fr)) of Al(2)O(3) and molecular diameter (H(2)O)(d) on thermal enhancement in magnetized and radiative nanofluid with mixed convection
title_sort impact of freezing temperature (t(fr)) of al(2)o(3) and molecular diameter (h(2)o)(d) on thermal enhancement in magnetized and radiative nanofluid with mixed convection
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8758704/
https://www.ncbi.nlm.nih.gov/pubmed/35027610
http://dx.doi.org/10.1038/s41598-021-04587-9
work_keys_str_mv AT adnan impactoffreezingtemperaturetfrofal2o3andmoleculardiameterh2odonthermalenhancementinmagnetizedandradiativenanofluidwithmixedconvection
AT ashrafwaqas impactoffreezingtemperaturetfrofal2o3andmoleculardiameterh2odonthermalenhancementinmagnetizedandradiativenanofluidwithmixedconvection
AT khanumar impactoffreezingtemperaturetfrofal2o3andmoleculardiameterh2odonthermalenhancementinmagnetizedandradiativenanofluidwithmixedconvection
AT aljohaniamnahs impactoffreezingtemperaturetfrofal2o3andmoleculardiameterh2odonthermalenhancementinmagnetizedandradiativenanofluidwithmixedconvection
AT ahmednaveed impactoffreezingtemperaturetfrofal2o3andmoleculardiameterh2odonthermalenhancementinmagnetizedandradiativenanofluidwithmixedconvection
AT mohyuddinsyedtauseef impactoffreezingtemperaturetfrofal2o3andmoleculardiameterh2odonthermalenhancementinmagnetizedandradiativenanofluidwithmixedconvection
AT khanilyas impactoffreezingtemperaturetfrofal2o3andmoleculardiameterh2odonthermalenhancementinmagnetizedandradiativenanofluidwithmixedconvection
AT andualemmulugeta impactoffreezingtemperaturetfrofal2o3andmoleculardiameterh2odonthermalenhancementinmagnetizedandradiativenanofluidwithmixedconvection