MHD Flow and Heat Transfer between Coaxial Rotating Stretchable Disks in a Thermally Stratified Medium.

This paper investigates the unsteady MHD flow of viscous fluid between two parallel rotating disks. Fluid fills the porous space. Energy equation has been constructed by taking Joule heating, thermal stratification and radiation effects into consideration. We convert system of partial differential e...

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Main Authors: Tasawar Hayat, Sumaira Qayyum, Maria Imtiaz, Ahmed Alsaedi
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2016-01-01
Series:PLoS ONE
Online Access:https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0155899&type=printable
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author Tasawar Hayat
Sumaira Qayyum
Maria Imtiaz
Ahmed Alsaedi
author_facet Tasawar Hayat
Sumaira Qayyum
Maria Imtiaz
Ahmed Alsaedi
author_sort Tasawar Hayat
collection DOAJ
description This paper investigates the unsteady MHD flow of viscous fluid between two parallel rotating disks. Fluid fills the porous space. Energy equation has been constructed by taking Joule heating, thermal stratification and radiation effects into consideration. We convert system of partial differential equations into system of highly nonlinear ordinary differential equations after employing the suitable transformations. Convergent series solutions are obtained. Behavior of different involved parameters on velocity and temperature profiles is examined graphically. Numerical values of skin friction coefficient and Nusselt number are computed and inspected. It is found that tangential velocity profile is increasing function of rotational parameter. Fluid temperature reduces for increasing values of thermal stratification parameter. At upper disk heat transfer rate enhances for larger values of Eckert and Prandtl numbers.
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publisher Public Library of Science (PLoS)
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series PLoS ONE
spelling doaj-art-1fefe197ab3f4b9da7d3ed3490cda9e62025-08-20T03:10:59ZengPublic Library of Science (PLoS)PLoS ONE1932-62032016-01-01115e015589910.1371/journal.pone.0155899MHD Flow and Heat Transfer between Coaxial Rotating Stretchable Disks in a Thermally Stratified Medium.Tasawar HayatSumaira QayyumMaria ImtiazAhmed AlsaediThis paper investigates the unsteady MHD flow of viscous fluid between two parallel rotating disks. Fluid fills the porous space. Energy equation has been constructed by taking Joule heating, thermal stratification and radiation effects into consideration. We convert system of partial differential equations into system of highly nonlinear ordinary differential equations after employing the suitable transformations. Convergent series solutions are obtained. Behavior of different involved parameters on velocity and temperature profiles is examined graphically. Numerical values of skin friction coefficient and Nusselt number are computed and inspected. It is found that tangential velocity profile is increasing function of rotational parameter. Fluid temperature reduces for increasing values of thermal stratification parameter. At upper disk heat transfer rate enhances for larger values of Eckert and Prandtl numbers.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0155899&type=printable
spellingShingle Tasawar Hayat
Sumaira Qayyum
Maria Imtiaz
Ahmed Alsaedi
MHD Flow and Heat Transfer between Coaxial Rotating Stretchable Disks in a Thermally Stratified Medium.
PLoS ONE
title MHD Flow and Heat Transfer between Coaxial Rotating Stretchable Disks in a Thermally Stratified Medium.
title_full MHD Flow and Heat Transfer between Coaxial Rotating Stretchable Disks in a Thermally Stratified Medium.
title_fullStr MHD Flow and Heat Transfer between Coaxial Rotating Stretchable Disks in a Thermally Stratified Medium.
title_full_unstemmed MHD Flow and Heat Transfer between Coaxial Rotating Stretchable Disks in a Thermally Stratified Medium.
title_short MHD Flow and Heat Transfer between Coaxial Rotating Stretchable Disks in a Thermally Stratified Medium.
title_sort mhd flow and heat transfer between coaxial rotating stretchable disks in a thermally stratified medium
url https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0155899&type=printable
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AT mariaimtiaz mhdflowandheattransferbetweencoaxialrotatingstretchabledisksinathermallystratifiedmedium
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