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A novel hybridity model for TiO(2)-CuO/water hybrid nanofluid flow over a static/moving wedge or corner

In this study, we are going to investigate semi-analytically the steady laminar incompressible two-dimensional boundary layer flow of a TiO(2)-CuO/water hybrid nanofluid over a static/moving wedge or corner that is called Falkner-Skan problem. A novel mass-based approach to one-phase hybrid nanoflui...

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Autores principales: Dinarvand, Saeed, Rostami, Mohammadreza Nademi, Pop, Ioan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6841699/
https://www.ncbi.nlm.nih.gov/pubmed/31704979
http://dx.doi.org/10.1038/s41598-019-52720-6
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author Dinarvand, Saeed
Rostami, Mohammadreza Nademi
Pop, Ioan
author_facet Dinarvand, Saeed
Rostami, Mohammadreza Nademi
Pop, Ioan
author_sort Dinarvand, Saeed
collection PubMed
description In this study, we are going to investigate semi-analytically the steady laminar incompressible two-dimensional boundary layer flow of a TiO(2)-CuO/water hybrid nanofluid over a static/moving wedge or corner that is called Falkner-Skan problem. A novel mass-based approach to one-phase hybrid nanofluid model that suggests both first and second nanoparticles as well as base fluid masses as the vital inputs to obtain the effective thermophysical properties of our hybrid nanofluid, has been presented. Other governing parameters are moving wedge/corner parameter (λ), Falkner-Skan power law parameter (m), shape factor parameter (n) and Prandtl number (Pr). The governing partial differential equations become dimensionless with help of similarity transformation method, so that we can solve them numerically using bvp4c built-in function by MATLAB. It is worthwhile to notice that, validation results exhibit an excellent agreement with already existing reports. Besides, it is shown that both hydrodynamic and thermal boundary layer thicknesses decrease with the second nanoparticle mass as well as Falkner-Skan power law parameter. Further, we understand our hybrid nanofluid has better thermal performance relative to its mono-nanofluid and base fluid, respectively. Moreover, a comparison between various values of nanoparticle shape factor and their effect on local heat transfer rate is presented. It is proven that the platelet shape of both particles (n(1) = n(2) = 5.7) leads to higher local Nusselt number in comparison with other shapes including sphere, brick and cylinder. Consequently, this algorithm can be applied to analyze the thermal performance of hybrid nanofluids in other different researches.
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spelling pubmed-68416992019-11-14 A novel hybridity model for TiO(2)-CuO/water hybrid nanofluid flow over a static/moving wedge or corner Dinarvand, Saeed Rostami, Mohammadreza Nademi Pop, Ioan Sci Rep Article In this study, we are going to investigate semi-analytically the steady laminar incompressible two-dimensional boundary layer flow of a TiO(2)-CuO/water hybrid nanofluid over a static/moving wedge or corner that is called Falkner-Skan problem. A novel mass-based approach to one-phase hybrid nanofluid model that suggests both first and second nanoparticles as well as base fluid masses as the vital inputs to obtain the effective thermophysical properties of our hybrid nanofluid, has been presented. Other governing parameters are moving wedge/corner parameter (λ), Falkner-Skan power law parameter (m), shape factor parameter (n) and Prandtl number (Pr). The governing partial differential equations become dimensionless with help of similarity transformation method, so that we can solve them numerically using bvp4c built-in function by MATLAB. It is worthwhile to notice that, validation results exhibit an excellent agreement with already existing reports. Besides, it is shown that both hydrodynamic and thermal boundary layer thicknesses decrease with the second nanoparticle mass as well as Falkner-Skan power law parameter. Further, we understand our hybrid nanofluid has better thermal performance relative to its mono-nanofluid and base fluid, respectively. Moreover, a comparison between various values of nanoparticle shape factor and their effect on local heat transfer rate is presented. It is proven that the platelet shape of both particles (n(1) = n(2) = 5.7) leads to higher local Nusselt number in comparison with other shapes including sphere, brick and cylinder. Consequently, this algorithm can be applied to analyze the thermal performance of hybrid nanofluids in other different researches. Nature Publishing Group UK 2019-11-08 /pmc/articles/PMC6841699/ /pubmed/31704979 http://dx.doi.org/10.1038/s41598-019-52720-6 Text en © The Author(s) 2019 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Dinarvand, Saeed
Rostami, Mohammadreza Nademi
Pop, Ioan
A novel hybridity model for TiO(2)-CuO/water hybrid nanofluid flow over a static/moving wedge or corner
title A novel hybridity model for TiO(2)-CuO/water hybrid nanofluid flow over a static/moving wedge or corner
title_full A novel hybridity model for TiO(2)-CuO/water hybrid nanofluid flow over a static/moving wedge or corner
title_fullStr A novel hybridity model for TiO(2)-CuO/water hybrid nanofluid flow over a static/moving wedge or corner
title_full_unstemmed A novel hybridity model for TiO(2)-CuO/water hybrid nanofluid flow over a static/moving wedge or corner
title_short A novel hybridity model for TiO(2)-CuO/water hybrid nanofluid flow over a static/moving wedge or corner
title_sort novel hybridity model for tio(2)-cuo/water hybrid nanofluid flow over a static/moving wedge or corner
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6841699/
https://www.ncbi.nlm.nih.gov/pubmed/31704979
http://dx.doi.org/10.1038/s41598-019-52720-6
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