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Heat transfer enhancement in the boundary layer flow of hybrid nanofluids due to variable viscosity and natural convection
The aim of the current work is to explore how heat transfer can be enhanced by variations in the basic properties of fluids in the presence of free convection with the aid of suspended hybrid nanofluids. Also, the influence of the Laurentz force on the flow is considered. The mathematical equations...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6451174/ https://www.ncbi.nlm.nih.gov/pubmed/30997430 http://dx.doi.org/10.1016/j.heliyon.2019.e01469 |
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author | Manjunatha, S. Ammani Kuttan, B. Jayanthi, S. Chamkha, Ali Gireesha, B.J. |
author_facet | Manjunatha, S. Ammani Kuttan, B. Jayanthi, S. Chamkha, Ali Gireesha, B.J. |
author_sort | Manjunatha, S. |
collection | PubMed |
description | The aim of the current work is to explore how heat transfer can be enhanced by variations in the basic properties of fluids in the presence of free convection with the aid of suspended hybrid nanofluids. Also, the influence of the Laurentz force on the flow is considered. The mathematical equations are converted into a pair of self-similarity equations by applying appropriate transformations. The reduced similarity equivalences are then solved numerically by Runge-Kutta-Fehlberg 45(th)-order method. To gain better perception of the problem, the flow and energy transfer characteristics are explored for distinct values of significant factors such as variable viscosity, convection, magnetic field, and volume fraction. The results acquired are in good agreement with previously published results. The noteworthy finding is that the thermal conductivity is greater in hybrid nanofluid than that of a regular nanofluid in the presence of specified factors. The boundary layer thickness of both hybrid nanofluid and normal nanofluid diminishes due to decrease in variable viscosity. The fluid flow and temperature of the hybrid nanofluid and normal nanofluid increases as there is a rise in volume fraction. |
format | Online Article Text |
id | pubmed-6451174 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-64511742019-04-17 Heat transfer enhancement in the boundary layer flow of hybrid nanofluids due to variable viscosity and natural convection Manjunatha, S. Ammani Kuttan, B. Jayanthi, S. Chamkha, Ali Gireesha, B.J. Heliyon Article The aim of the current work is to explore how heat transfer can be enhanced by variations in the basic properties of fluids in the presence of free convection with the aid of suspended hybrid nanofluids. Also, the influence of the Laurentz force on the flow is considered. The mathematical equations are converted into a pair of self-similarity equations by applying appropriate transformations. The reduced similarity equivalences are then solved numerically by Runge-Kutta-Fehlberg 45(th)-order method. To gain better perception of the problem, the flow and energy transfer characteristics are explored for distinct values of significant factors such as variable viscosity, convection, magnetic field, and volume fraction. The results acquired are in good agreement with previously published results. The noteworthy finding is that the thermal conductivity is greater in hybrid nanofluid than that of a regular nanofluid in the presence of specified factors. The boundary layer thickness of both hybrid nanofluid and normal nanofluid diminishes due to decrease in variable viscosity. The fluid flow and temperature of the hybrid nanofluid and normal nanofluid increases as there is a rise in volume fraction. Elsevier 2019-04-04 /pmc/articles/PMC6451174/ /pubmed/30997430 http://dx.doi.org/10.1016/j.heliyon.2019.e01469 Text en © 2019 Published by Elsevier Ltd. http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Article Manjunatha, S. Ammani Kuttan, B. Jayanthi, S. Chamkha, Ali Gireesha, B.J. Heat transfer enhancement in the boundary layer flow of hybrid nanofluids due to variable viscosity and natural convection |
title | Heat transfer enhancement in the boundary layer flow of hybrid nanofluids due to variable viscosity and natural convection |
title_full | Heat transfer enhancement in the boundary layer flow of hybrid nanofluids due to variable viscosity and natural convection |
title_fullStr | Heat transfer enhancement in the boundary layer flow of hybrid nanofluids due to variable viscosity and natural convection |
title_full_unstemmed | Heat transfer enhancement in the boundary layer flow of hybrid nanofluids due to variable viscosity and natural convection |
title_short | Heat transfer enhancement in the boundary layer flow of hybrid nanofluids due to variable viscosity and natural convection |
title_sort | heat transfer enhancement in the boundary layer flow of hybrid nanofluids due to variable viscosity and natural convection |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6451174/ https://www.ncbi.nlm.nih.gov/pubmed/30997430 http://dx.doi.org/10.1016/j.heliyon.2019.e01469 |
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