Unsteady Sisko magneto-nanofluid flow with heat absorption and temperature dependent thermal conductivity: A 3D numerical study

The impact of temperature dependent thermal conductivity and convective surface conditions on unsteady 3D Sisko nanofluid flow over a stretching surface is studied in the presence of heat generation/absorption and magnetic field. The numerical solution of nonlinear coupled equations has been carried...

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Main Authors: Masood Khan, Latif Ahmad, M. Mudassar Gulzar
Format: Article
Language:English
Published: Elsevier 2018-03-01
Series:Results in Physics
Online Access:http://www.sciencedirect.com/science/article/pii/S221137971732510X
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author Masood Khan
Latif Ahmad
M. Mudassar Gulzar
author_facet Masood Khan
Latif Ahmad
M. Mudassar Gulzar
author_sort Masood Khan
collection DOAJ
description The impact of temperature dependent thermal conductivity and convective surface conditions on unsteady 3D Sisko nanofluid flow over a stretching surface is studied in the presence of heat generation/absorption and magnetic field. The numerical solution of nonlinear coupled equations has been carried out to explore the properties of different physical profiles of the fluid flow with varying of parameters. Specifically, the application of generalized Biot numbers and heat generation/absorption parameter in the sketching of temperature and concentration profiles are explored. The effect of all three parameters is noticed in the increasing order for shear thinning (0<n<1) and for shear thickening (n>1) fluids. Moreover, the influence of Biot number γ1 on heat and mass transfer rates, are found in the enhancement and diminishing conducts respectively, in both cases of shear thinning as well as shear thickening fluids and a reverse trend is observed with the variation of Biot number γ2. Additionally, the present results are validated through skin friction, heat and mass transfer rate values with the comparable values in the existing previous values. Keywords: 3D Sisko nanofluid, Variable thermal conductivity, Bidirectional stretched surface, Convective surface conditions
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spelling doaj.art-924d74dc711349788c3c9861971b246f2022-12-22T02:15:04ZengElsevierResults in Physics2211-37972018-03-01810921103Unsteady Sisko magneto-nanofluid flow with heat absorption and temperature dependent thermal conductivity: A 3D numerical studyMasood Khan0Latif Ahmad1M. Mudassar Gulzar2Department of Mathematics, Quaid-i-Azam University, Islamabad 44000, PakistanDepartment of Mathematics, Quaid-i-Azam University, Islamabad 44000, Pakistan; Department of Mathematics, Shaheed Benazir Bhutto University, Sheringal Upper Dir, 18000, Pakistan; Corresponding author at: Department of Mathematics, Quaid-i-Azam University, Islamabad 44000, Pakistan.Department of Basic Sciences and Humanities, College of Electrical and Mechanical Engineering, National University of Sciences and Technology, Islamabad 44000, PakistanThe impact of temperature dependent thermal conductivity and convective surface conditions on unsteady 3D Sisko nanofluid flow over a stretching surface is studied in the presence of heat generation/absorption and magnetic field. The numerical solution of nonlinear coupled equations has been carried out to explore the properties of different physical profiles of the fluid flow with varying of parameters. Specifically, the application of generalized Biot numbers and heat generation/absorption parameter in the sketching of temperature and concentration profiles are explored. The effect of all three parameters is noticed in the increasing order for shear thinning (0<n<1) and for shear thickening (n>1) fluids. Moreover, the influence of Biot number γ1 on heat and mass transfer rates, are found in the enhancement and diminishing conducts respectively, in both cases of shear thinning as well as shear thickening fluids and a reverse trend is observed with the variation of Biot number γ2. Additionally, the present results are validated through skin friction, heat and mass transfer rate values with the comparable values in the existing previous values. Keywords: 3D Sisko nanofluid, Variable thermal conductivity, Bidirectional stretched surface, Convective surface conditionshttp://www.sciencedirect.com/science/article/pii/S221137971732510X
spellingShingle Masood Khan
Latif Ahmad
M. Mudassar Gulzar
Unsteady Sisko magneto-nanofluid flow with heat absorption and temperature dependent thermal conductivity: A 3D numerical study
Results in Physics
title Unsteady Sisko magneto-nanofluid flow with heat absorption and temperature dependent thermal conductivity: A 3D numerical study
title_full Unsteady Sisko magneto-nanofluid flow with heat absorption and temperature dependent thermal conductivity: A 3D numerical study
title_fullStr Unsteady Sisko magneto-nanofluid flow with heat absorption and temperature dependent thermal conductivity: A 3D numerical study
title_full_unstemmed Unsteady Sisko magneto-nanofluid flow with heat absorption and temperature dependent thermal conductivity: A 3D numerical study
title_short Unsteady Sisko magneto-nanofluid flow with heat absorption and temperature dependent thermal conductivity: A 3D numerical study
title_sort unsteady sisko magneto nanofluid flow with heat absorption and temperature dependent thermal conductivity a 3d numerical study
url http://www.sciencedirect.com/science/article/pii/S221137971732510X
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AT latifahmad unsteadysiskomagnetonanofluidflowwithheatabsorptionandtemperaturedependentthermalconductivitya3dnumericalstudy
AT mmudassargulzar unsteadysiskomagnetonanofluidflowwithheatabsorptionandtemperaturedependentthermalconductivitya3dnumericalstudy