Stagnation flow of a micropolar fluid towards a vertical permeable surface

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18 Citations (Scopus)

Abstract

The steady stagnation flow towards a permeable vertical surface immersed in a micropolar fluid is investigated in this study. The external flow impinges normal to the heated plate and the surface temperature and velocity are assumed to vary linearly with the distance from the stagnation point. The governing system of partial differential equations is first transformed into a system of ordinary differential equations, and then they are solved numerically by a finite-difference scheme, namely the Keller-box method. The features of the flow and heat transfer characteristics for different values of the governing parameters are analyzed and discussed. Both assisting and opposing flows are considered. It is observed that dual solutions exist for the assisting flow, besides that usually reported in the literature for the opposing flow.

Original languageEnglish
Pages (from-to)276-281
Number of pages6
JournalInternational Communications in Heat and Mass Transfer
Volume35
Issue number3
DOIs
Publication statusPublished - Mar 2008

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micropolar fluids
stagnation flow
Fluids
Steady flow
Ordinary differential equations
Partial differential equations
Heat transfer
stagnation point
partial differential equations
surface temperature
boxes
differential equations
Temperature
heat transfer

Keywords

  • Boundary-layer
  • Dual solutions
  • Micropolar fluid
  • Mixed convection
  • Suction/injection

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Mechanical Engineering

Cite this

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abstract = "The steady stagnation flow towards a permeable vertical surface immersed in a micropolar fluid is investigated in this study. The external flow impinges normal to the heated plate and the surface temperature and velocity are assumed to vary linearly with the distance from the stagnation point. The governing system of partial differential equations is first transformed into a system of ordinary differential equations, and then they are solved numerically by a finite-difference scheme, namely the Keller-box method. The features of the flow and heat transfer characteristics for different values of the governing parameters are analyzed and discussed. Both assisting and opposing flows are considered. It is observed that dual solutions exist for the assisting flow, besides that usually reported in the literature for the opposing flow.",
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author = "{Mohd Ishak}, Anuar and {Mohd. Nazar}, Roslinda and Ioan Pop",
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T1 - Stagnation flow of a micropolar fluid towards a vertical permeable surface

AU - Mohd Ishak, Anuar

AU - Mohd. Nazar, Roslinda

AU - Pop, Ioan

PY - 2008/3

Y1 - 2008/3

N2 - The steady stagnation flow towards a permeable vertical surface immersed in a micropolar fluid is investigated in this study. The external flow impinges normal to the heated plate and the surface temperature and velocity are assumed to vary linearly with the distance from the stagnation point. The governing system of partial differential equations is first transformed into a system of ordinary differential equations, and then they are solved numerically by a finite-difference scheme, namely the Keller-box method. The features of the flow and heat transfer characteristics for different values of the governing parameters are analyzed and discussed. Both assisting and opposing flows are considered. It is observed that dual solutions exist for the assisting flow, besides that usually reported in the literature for the opposing flow.

AB - The steady stagnation flow towards a permeable vertical surface immersed in a micropolar fluid is investigated in this study. The external flow impinges normal to the heated plate and the surface temperature and velocity are assumed to vary linearly with the distance from the stagnation point. The governing system of partial differential equations is first transformed into a system of ordinary differential equations, and then they are solved numerically by a finite-difference scheme, namely the Keller-box method. The features of the flow and heat transfer characteristics for different values of the governing parameters are analyzed and discussed. Both assisting and opposing flows are considered. It is observed that dual solutions exist for the assisting flow, besides that usually reported in the literature for the opposing flow.

KW - Boundary-layer

KW - Dual solutions

KW - Micropolar fluid

KW - Mixed convection

KW - Suction/injection

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