Boundary layer flow near a stagnation point on a permeable vertical surface immersed in a nanofluid

Noor Adila Othman, Nor Azizah Yacob, Norfifah Bachok, Nazirah Ramli, Anuar Mohd Ishak

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A steady mixed convection boundary layer flow near a stagnation point on a permeable vertical surface immersed in a nanofluid is investigated. The velocity of the external flow is assumed to vary linearly with the distance from the stagnation-point. The governing partial differential equations are first transformed into ordinary differential equations, before being solved numerically using the Keller box method with the help of MATLAB software. The effects of physical parameters such as the suction/injection parameter, Brownian motion parameter, thermophoresis parameter and Lewis number on the heat and mass transfer rate at the surface as well as the temperature and concentration profiles are analyzed and discussed. Both assisting and opposing flows are considered. It is found that, increasing the thermophoresis parameter, Brownian motion parameter and Lewis number are to decrease the heat transfer rate at the surface, but on the other hand increase the mass transfer rate at the surface for both assisting and opposing flows. In addition, increasing suction parameter tends to increase the heat transfer rate at the surface. However, the opposite behavior occurs for the effect of mass transfer rate at the surface.

Original languageEnglish
Title of host publication22nd National Symposium on Mathematical Sciences, SKSM 2014: Strengthening Research and Collaboration of Mathematical Sciences in Malaysia
PublisherAmerican Institute of Physics Inc.
Volume1682
ISBN (Electronic)9780735413290
DOIs
Publication statusPublished - 22 Oct 2015
Event22nd National Symposium on Mathematical Sciences: Strengthening Research and Collaboration of Mathematical Sciences in Malaysia, SKSM 2014 - Selangor, Malaysia
Duration: 24 Nov 201426 Nov 2014

Other

Other22nd National Symposium on Mathematical Sciences: Strengthening Research and Collaboration of Mathematical Sciences in Malaysia, SKSM 2014
CountryMalaysia
CitySelangor
Period24/11/1426/11/14

Fingerprint

boundary layer flow
stagnation point
thermophoresis
mass transfer
Lewis numbers
heat transfer
suction
partial differential equations
temperature profiles
boxes
convection
differential equations
injection
computer programs
profiles

Keywords

  • boundary layer flow
  • mixed convection
  • stagnation point
  • suction/injection
  • vertical surface

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Othman, N. A., Yacob, N. A., Bachok, N., Ramli, N., & Mohd Ishak, A. (2015). Boundary layer flow near a stagnation point on a permeable vertical surface immersed in a nanofluid. In 22nd National Symposium on Mathematical Sciences, SKSM 2014: Strengthening Research and Collaboration of Mathematical Sciences in Malaysia (Vol. 1682). [020038] American Institute of Physics Inc.. https://doi.org/10.1063/1.4932447

Boundary layer flow near a stagnation point on a permeable vertical surface immersed in a nanofluid. / Othman, Noor Adila; Yacob, Nor Azizah; Bachok, Norfifah; Ramli, Nazirah; Mohd Ishak, Anuar.

22nd National Symposium on Mathematical Sciences, SKSM 2014: Strengthening Research and Collaboration of Mathematical Sciences in Malaysia. Vol. 1682 American Institute of Physics Inc., 2015. 020038.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Othman, NA, Yacob, NA, Bachok, N, Ramli, N & Mohd Ishak, A 2015, Boundary layer flow near a stagnation point on a permeable vertical surface immersed in a nanofluid. in 22nd National Symposium on Mathematical Sciences, SKSM 2014: Strengthening Research and Collaboration of Mathematical Sciences in Malaysia. vol. 1682, 020038, American Institute of Physics Inc., 22nd National Symposium on Mathematical Sciences: Strengthening Research and Collaboration of Mathematical Sciences in Malaysia, SKSM 2014, Selangor, Malaysia, 24/11/14. https://doi.org/10.1063/1.4932447
Othman NA, Yacob NA, Bachok N, Ramli N, Mohd Ishak A. Boundary layer flow near a stagnation point on a permeable vertical surface immersed in a nanofluid. In 22nd National Symposium on Mathematical Sciences, SKSM 2014: Strengthening Research and Collaboration of Mathematical Sciences in Malaysia. Vol. 1682. American Institute of Physics Inc. 2015. 020038 https://doi.org/10.1063/1.4932447
Othman, Noor Adila ; Yacob, Nor Azizah ; Bachok, Norfifah ; Ramli, Nazirah ; Mohd Ishak, Anuar. / Boundary layer flow near a stagnation point on a permeable vertical surface immersed in a nanofluid. 22nd National Symposium on Mathematical Sciences, SKSM 2014: Strengthening Research and Collaboration of Mathematical Sciences in Malaysia. Vol. 1682 American Institute of Physics Inc., 2015.
@inproceedings{fed13ca6232142f5b71eafdffc3c8286,
title = "Boundary layer flow near a stagnation point on a permeable vertical surface immersed in a nanofluid",
abstract = "A steady mixed convection boundary layer flow near a stagnation point on a permeable vertical surface immersed in a nanofluid is investigated. The velocity of the external flow is assumed to vary linearly with the distance from the stagnation-point. The governing partial differential equations are first transformed into ordinary differential equations, before being solved numerically using the Keller box method with the help of MATLAB software. The effects of physical parameters such as the suction/injection parameter, Brownian motion parameter, thermophoresis parameter and Lewis number on the heat and mass transfer rate at the surface as well as the temperature and concentration profiles are analyzed and discussed. Both assisting and opposing flows are considered. It is found that, increasing the thermophoresis parameter, Brownian motion parameter and Lewis number are to decrease the heat transfer rate at the surface, but on the other hand increase the mass transfer rate at the surface for both assisting and opposing flows. In addition, increasing suction parameter tends to increase the heat transfer rate at the surface. However, the opposite behavior occurs for the effect of mass transfer rate at the surface.",
keywords = "boundary layer flow, mixed convection, stagnation point, suction/injection, vertical surface",
author = "Othman, {Noor Adila} and Yacob, {Nor Azizah} and Norfifah Bachok and Nazirah Ramli and {Mohd Ishak}, Anuar",
year = "2015",
month = "10",
day = "22",
doi = "10.1063/1.4932447",
language = "English",
volume = "1682",
booktitle = "22nd National Symposium on Mathematical Sciences, SKSM 2014: Strengthening Research and Collaboration of Mathematical Sciences in Malaysia",
publisher = "American Institute of Physics Inc.",

}

TY - GEN

T1 - Boundary layer flow near a stagnation point on a permeable vertical surface immersed in a nanofluid

AU - Othman, Noor Adila

AU - Yacob, Nor Azizah

AU - Bachok, Norfifah

AU - Ramli, Nazirah

AU - Mohd Ishak, Anuar

PY - 2015/10/22

Y1 - 2015/10/22

N2 - A steady mixed convection boundary layer flow near a stagnation point on a permeable vertical surface immersed in a nanofluid is investigated. The velocity of the external flow is assumed to vary linearly with the distance from the stagnation-point. The governing partial differential equations are first transformed into ordinary differential equations, before being solved numerically using the Keller box method with the help of MATLAB software. The effects of physical parameters such as the suction/injection parameter, Brownian motion parameter, thermophoresis parameter and Lewis number on the heat and mass transfer rate at the surface as well as the temperature and concentration profiles are analyzed and discussed. Both assisting and opposing flows are considered. It is found that, increasing the thermophoresis parameter, Brownian motion parameter and Lewis number are to decrease the heat transfer rate at the surface, but on the other hand increase the mass transfer rate at the surface for both assisting and opposing flows. In addition, increasing suction parameter tends to increase the heat transfer rate at the surface. However, the opposite behavior occurs for the effect of mass transfer rate at the surface.

AB - A steady mixed convection boundary layer flow near a stagnation point on a permeable vertical surface immersed in a nanofluid is investigated. The velocity of the external flow is assumed to vary linearly with the distance from the stagnation-point. The governing partial differential equations are first transformed into ordinary differential equations, before being solved numerically using the Keller box method with the help of MATLAB software. The effects of physical parameters such as the suction/injection parameter, Brownian motion parameter, thermophoresis parameter and Lewis number on the heat and mass transfer rate at the surface as well as the temperature and concentration profiles are analyzed and discussed. Both assisting and opposing flows are considered. It is found that, increasing the thermophoresis parameter, Brownian motion parameter and Lewis number are to decrease the heat transfer rate at the surface, but on the other hand increase the mass transfer rate at the surface for both assisting and opposing flows. In addition, increasing suction parameter tends to increase the heat transfer rate at the surface. However, the opposite behavior occurs for the effect of mass transfer rate at the surface.

KW - boundary layer flow

KW - mixed convection

KW - stagnation point

KW - suction/injection

KW - vertical surface

UR - http://www.scopus.com/inward/record.url?scp=84984585871&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84984585871&partnerID=8YFLogxK

U2 - 10.1063/1.4932447

DO - 10.1063/1.4932447

M3 - Conference contribution

AN - SCOPUS:84984585871

VL - 1682

BT - 22nd National Symposium on Mathematical Sciences, SKSM 2014: Strengthening Research and Collaboration of Mathematical Sciences in Malaysia

PB - American Institute of Physics Inc.

ER -