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Forced convective boundary layer flow of a nanofluid past a continuous stretching surface

Nanofluid is an advanced kind of fluid containing small quantities of nanoparticles that are uniformly and stably suspended in a base liquid. It has a higher thermal conductivity and enhanced heat transfer coefficient than its base fluid. In this study, the steady forced convective boundary layer fl...

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Main Author: Waini, Iskandar
Format: Thesis
Language:English
Published: 2011
Subjects:
QA Mathematics
Online Access:http://eprints.utm.my/id/eprint/47988/1/IskandarWainiMFS2011.pdf
http://eprints.utm.my/id/eprint/47988/
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spelling my.utm.479882018-05-30T03:57:55Z http://eprints.utm.my/id/eprint/47988/ Forced convective boundary layer flow of a nanofluid past a continuous stretching surface Waini, Iskandar QA Mathematics Nanofluid is an advanced kind of fluid containing small quantities of nanoparticles that are uniformly and stably suspended in a base liquid. It has a higher thermal conductivity and enhanced heat transfer coefficient than its base fluid. In this study, the steady forced convective boundary layer flow of a nanofluid past a continuous stretching surface with suction or injection and magnetic effect is investigated. This mathematical model describes the flow of nanofluid that incorporates the effects of Brownian motion and thermophoresis. The governing nonlinear partial differential equations are transformed into a system of nonlinear ordinary differential equations using similarity transformation which is then solved numerically using a finite difference scheme known as the Keller-box method. The numerical results obtained show that the value of the reduced Nusselt number decreases with the increasing value of the Brownian motion parameter, Nb and thermophoresis parameter, Nt. Whereas, the value of the reduced Sherwood number increases with Nt but decreases with Nb. It is also observed that the reduced Nusselt and Sherwood numbers decrease with an increase of the velocity stretching parameter, m, the magnetic parameter, Mn and the injection parameter, d > 0 . The suction parameter, d < 0 , on the other hand, tends to increase the skin friction coefficient, reduced Nusselt and Sherwood numbers. The results show that the Brownian motion and thermophoresis influence the flow characteristics of nanofluids by either warming the boundary layer or aggravating the collisions between the nanoparticles and molecules of the base fluid. 2011-07 Thesis NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/47988/1/IskandarWainiMFS2011.pdf Waini, Iskandar (2011) Forced convective boundary layer flow of a nanofluid past a continuous stretching surface. Masters thesis, Universiti Teknologi Malaysia, Faculty of Science.
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic QA Mathematics
spellingShingle QA Mathematics
Waini, Iskandar
Forced convective boundary layer flow of a nanofluid past a continuous stretching surface
description Nanofluid is an advanced kind of fluid containing small quantities of nanoparticles that are uniformly and stably suspended in a base liquid. It has a higher thermal conductivity and enhanced heat transfer coefficient than its base fluid. In this study, the steady forced convective boundary layer flow of a nanofluid past a continuous stretching surface with suction or injection and magnetic effect is investigated. This mathematical model describes the flow of nanofluid that incorporates the effects of Brownian motion and thermophoresis. The governing nonlinear partial differential equations are transformed into a system of nonlinear ordinary differential equations using similarity transformation which is then solved numerically using a finite difference scheme known as the Keller-box method. The numerical results obtained show that the value of the reduced Nusselt number decreases with the increasing value of the Brownian motion parameter, Nb and thermophoresis parameter, Nt. Whereas, the value of the reduced Sherwood number increases with Nt but decreases with Nb. It is also observed that the reduced Nusselt and Sherwood numbers decrease with an increase of the velocity stretching parameter, m, the magnetic parameter, Mn and the injection parameter, d > 0 . The suction parameter, d < 0 , on the other hand, tends to increase the skin friction coefficient, reduced Nusselt and Sherwood numbers. The results show that the Brownian motion and thermophoresis influence the flow characteristics of nanofluids by either warming the boundary layer or aggravating the collisions between the nanoparticles and molecules of the base fluid.
format Thesis
author Waini, Iskandar
author_facet Waini, Iskandar
author_sort Waini, Iskandar
title Forced convective boundary layer flow of a nanofluid past a continuous stretching surface
title_short Forced convective boundary layer flow of a nanofluid past a continuous stretching surface
title_full Forced convective boundary layer flow of a nanofluid past a continuous stretching surface
title_fullStr Forced convective boundary layer flow of a nanofluid past a continuous stretching surface
title_full_unstemmed Forced convective boundary layer flow of a nanofluid past a continuous stretching surface
title_sort forced convective boundary layer flow of a nanofluid past a continuous stretching surface
publishDate 2011
url http://eprints.utm.my/id/eprint/47988/1/IskandarWainiMFS2011.pdf
http://eprints.utm.my/id/eprint/47988/
_version_ 1643652425880436736
score 13.211869

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