Flow and heat transfer of MHD non-Newtonian power-law fluids due to rotating disk

In flows over rotating disk, substantial additional flow phenomena arise due to the rotational forces or due to the nature of the three-dimensional boundary layer flows. The resulting flow characteristics can be very complex and almost every rotating system reveals novel and unexpected flow characte...

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Published in:Journal of Physics: Conference Series
Main Author: Rosli N.D.K.; Kechil S.A.
Format: Conference paper
Language:English
Published: Institute of Physics Publishing 2019
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85076117128&doi=10.1088%2f1742-6596%2f1366%2f1%2f012043&partnerID=40&md5=45c84bb54d5d8f5f99fdd832aee1e0fd
id 2-s2.0-85076117128
spelling 2-s2.0-85076117128
Rosli N.D.K.; Kechil S.A.
Flow and heat transfer of MHD non-Newtonian power-law fluids due to rotating disk
2019
Journal of Physics: Conference Series
1366
1
10.1088/1742-6596/1366/1/012043
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85076117128&doi=10.1088%2f1742-6596%2f1366%2f1%2f012043&partnerID=40&md5=45c84bb54d5d8f5f99fdd832aee1e0fd
In flows over rotating disk, substantial additional flow phenomena arise due to the rotational forces or due to the nature of the three-dimensional boundary layer flows. The resulting flow characteristics can be very complex and almost every rotating system reveals novel and unexpected flow characteristics over a sufficiently wide range of variables which affect the hydrodynamic phenomena. This paper focuses on the flow and heat transfer in non-Newtonian power law fluids due to a rotating disk in the presence of magnetic field. The number of independent variables in the highly non-linear partial differential equations was reduced by suitable similarity transformations. The coupled non-linear ordinary differential equations were solved numerically using the finite difference collocation method of MATLAB bvp4c. The effects of the magnetic parameter and Prandtl number on the flow fields and heat transfer rate were investigated for the cases of shear thinning and shear thickening power law fluids. The heat transfer rate reduces as the magnetic field strength increases but increases as the Prandtl number increases for both types of shear thickening and shear thinning fluids. The effects are more significant in the case for shear thinning fluids. © Published under licence by IOP Publishing Ltd.
Institute of Physics Publishing
17426588
English
Conference paper
All Open Access; Gold Open Access
author Rosli N.D.K.; Kechil S.A.
spellingShingle Rosli N.D.K.; Kechil S.A.
Flow and heat transfer of MHD non-Newtonian power-law fluids due to rotating disk
author_facet Rosli N.D.K.; Kechil S.A.
author_sort Rosli N.D.K.; Kechil S.A.
title Flow and heat transfer of MHD non-Newtonian power-law fluids due to rotating disk
title_short Flow and heat transfer of MHD non-Newtonian power-law fluids due to rotating disk
title_full Flow and heat transfer of MHD non-Newtonian power-law fluids due to rotating disk
title_fullStr Flow and heat transfer of MHD non-Newtonian power-law fluids due to rotating disk
title_full_unstemmed Flow and heat transfer of MHD non-Newtonian power-law fluids due to rotating disk
title_sort Flow and heat transfer of MHD non-Newtonian power-law fluids due to rotating disk
publishDate 2019
container_title Journal of Physics: Conference Series
container_volume 1366
container_issue 1
doi_str_mv 10.1088/1742-6596/1366/1/012043
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85076117128&doi=10.1088%2f1742-6596%2f1366%2f1%2f012043&partnerID=40&md5=45c84bb54d5d8f5f99fdd832aee1e0fd
description In flows over rotating disk, substantial additional flow phenomena arise due to the rotational forces or due to the nature of the three-dimensional boundary layer flows. The resulting flow characteristics can be very complex and almost every rotating system reveals novel and unexpected flow characteristics over a sufficiently wide range of variables which affect the hydrodynamic phenomena. This paper focuses on the flow and heat transfer in non-Newtonian power law fluids due to a rotating disk in the presence of magnetic field. The number of independent variables in the highly non-linear partial differential equations was reduced by suitable similarity transformations. The coupled non-linear ordinary differential equations were solved numerically using the finite difference collocation method of MATLAB bvp4c. The effects of the magnetic parameter and Prandtl number on the flow fields and heat transfer rate were investigated for the cases of shear thinning and shear thickening power law fluids. The heat transfer rate reduces as the magnetic field strength increases but increases as the Prandtl number increases for both types of shear thickening and shear thinning fluids. The effects are more significant in the case for shear thinning fluids. © Published under licence by IOP Publishing Ltd.
publisher Institute of Physics Publishing
issn 17426588
language English
format Conference paper
accesstype All Open Access; Gold Open Access
record_format scopus
collection Scopus
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