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Impacts of Freezing Temperature Based Thermal Conductivity on the Heat Transfer Gradient in Nanofluids: Applications for a Curved Riga Surface
The flow of nanofluid over a curved Riga surface is a topic of interest in the field of fluid dynamics. A literature survey revealed that the impacts of freezing temperature and the diameter of nanoparticles on the heat transfer over a curved Riga surface have not been examined so far. Therefore, th...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7248734/ https://www.ncbi.nlm.nih.gov/pubmed/32380658 http://dx.doi.org/10.3390/molecules25092152 |
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author | Adnan, Zaidi, Syed Zulfiqar Ali Khan, Umar Ahmed, Naveed Mohyud-Din, Syed Tauseef Chu, Yu-Ming Khan, Ilyas Nisar, Kottakkaran Sooppy |
author_facet | Adnan, Zaidi, Syed Zulfiqar Ali Khan, Umar Ahmed, Naveed Mohyud-Din, Syed Tauseef Chu, Yu-Ming Khan, Ilyas Nisar, Kottakkaran Sooppy |
author_sort | Adnan, |
collection | PubMed |
description | The flow of nanofluid over a curved Riga surface is a topic of interest in the field of fluid dynamics. A literature survey revealed that the impacts of freezing temperature and the diameter of nanoparticles on the heat transfer over a curved Riga surface have not been examined so far. Therefore, the flow of nanoparticles, which comprises the influences of freezing temperature and nanoparticle diameter in the energy equation, was modeled over a curved Riga surface. The model was reduced successfully in the nondimensional version by implementing the feasible similarity transformations and effective models of nanofluids. The coupled nonlinear model was then examined numerically and highlighted the impacts of various flow quantities in the flow regimes and heat transfer, with graphical aid. It was examined that nanofluid velocity dropped by increasing the flow parameters γ and S, and an abrupt decrement occurred at the surface of the Riga sheet. The boundary layer region enhances for larger γ. The temperature distribution was enhanced for a more magnetized nanofluid, and the thermal boundary layer increased with a larger R parameter. The volume fraction of the nanoparticles favors the effective density and dynamic viscosity of the nanofluids. A maximum amount of heat transfer at the surface was observed for a more magnetized nanofluid. |
format | Online Article Text |
id | pubmed-7248734 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-72487342020-08-13 Impacts of Freezing Temperature Based Thermal Conductivity on the Heat Transfer Gradient in Nanofluids: Applications for a Curved Riga Surface Adnan, Zaidi, Syed Zulfiqar Ali Khan, Umar Ahmed, Naveed Mohyud-Din, Syed Tauseef Chu, Yu-Ming Khan, Ilyas Nisar, Kottakkaran Sooppy Molecules Article The flow of nanofluid over a curved Riga surface is a topic of interest in the field of fluid dynamics. A literature survey revealed that the impacts of freezing temperature and the diameter of nanoparticles on the heat transfer over a curved Riga surface have not been examined so far. Therefore, the flow of nanoparticles, which comprises the influences of freezing temperature and nanoparticle diameter in the energy equation, was modeled over a curved Riga surface. The model was reduced successfully in the nondimensional version by implementing the feasible similarity transformations and effective models of nanofluids. The coupled nonlinear model was then examined numerically and highlighted the impacts of various flow quantities in the flow regimes and heat transfer, with graphical aid. It was examined that nanofluid velocity dropped by increasing the flow parameters γ and S, and an abrupt decrement occurred at the surface of the Riga sheet. The boundary layer region enhances for larger γ. The temperature distribution was enhanced for a more magnetized nanofluid, and the thermal boundary layer increased with a larger R parameter. The volume fraction of the nanoparticles favors the effective density and dynamic viscosity of the nanofluids. A maximum amount of heat transfer at the surface was observed for a more magnetized nanofluid. MDPI 2020-05-05 /pmc/articles/PMC7248734/ /pubmed/32380658 http://dx.doi.org/10.3390/molecules25092152 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Adnan, Zaidi, Syed Zulfiqar Ali Khan, Umar Ahmed, Naveed Mohyud-Din, Syed Tauseef Chu, Yu-Ming Khan, Ilyas Nisar, Kottakkaran Sooppy Impacts of Freezing Temperature Based Thermal Conductivity on the Heat Transfer Gradient in Nanofluids: Applications for a Curved Riga Surface |
title | Impacts of Freezing Temperature Based Thermal Conductivity on the Heat Transfer Gradient in Nanofluids: Applications for a Curved Riga Surface |
title_full | Impacts of Freezing Temperature Based Thermal Conductivity on the Heat Transfer Gradient in Nanofluids: Applications for a Curved Riga Surface |
title_fullStr | Impacts of Freezing Temperature Based Thermal Conductivity on the Heat Transfer Gradient in Nanofluids: Applications for a Curved Riga Surface |
title_full_unstemmed | Impacts of Freezing Temperature Based Thermal Conductivity on the Heat Transfer Gradient in Nanofluids: Applications for a Curved Riga Surface |
title_short | Impacts of Freezing Temperature Based Thermal Conductivity on the Heat Transfer Gradient in Nanofluids: Applications for a Curved Riga Surface |
title_sort | impacts of freezing temperature based thermal conductivity on the heat transfer gradient in nanofluids: applications for a curved riga surface |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7248734/ https://www.ncbi.nlm.nih.gov/pubmed/32380658 http://dx.doi.org/10.3390/molecules25092152 |
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