Heat transfer over a stretching surface with variable heat flux in micropolar fluids

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Abstract

Heat transfer over a stretching surface with uniform or variable heat flux in micropolar fluids is investigated in this Letter. The boundary layer equations are transformed into ordinary differential equations, and then they are solved numerically by a finite-difference method. The effects of the material parameter K, Prandtl number Pr, velocity exponent parameter m, and heat flux exponent parameter n on the heat transfer characteristics are studied. It is found that the local Nusselt number is higher for micropolar fluids compared to Newtonian fluids.

Original languageEnglish
Pages (from-to)559-561
Number of pages3
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Volume372
Issue number5
DOIs
Publication statusPublished - 28 Jan 2008

Fingerprint

micropolar fluids
heat flux
heat transfer
exponents
boundary layer equations
Newtonian fluids
Prandtl number
Nusselt number
differential equations

Keywords

  • Heat transfer
  • Micropolar fluid
  • Stretching surface

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

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AU - Mohd Ishak, Anuar

AU - Mohd. Nazar, Roslinda

AU - Pop, Ioan

PY - 2008/1/28

Y1 - 2008/1/28

N2 - Heat transfer over a stretching surface with uniform or variable heat flux in micropolar fluids is investigated in this Letter. The boundary layer equations are transformed into ordinary differential equations, and then they are solved numerically by a finite-difference method. The effects of the material parameter K, Prandtl number Pr, velocity exponent parameter m, and heat flux exponent parameter n on the heat transfer characteristics are studied. It is found that the local Nusselt number is higher for micropolar fluids compared to Newtonian fluids.

AB - Heat transfer over a stretching surface with uniform or variable heat flux in micropolar fluids is investigated in this Letter. The boundary layer equations are transformed into ordinary differential equations, and then they are solved numerically by a finite-difference method. The effects of the material parameter K, Prandtl number Pr, velocity exponent parameter m, and heat flux exponent parameter n on the heat transfer characteristics are studied. It is found that the local Nusselt number is higher for micropolar fluids compared to Newtonian fluids.

KW - Heat transfer

KW - Micropolar fluid

KW - Stretching surface

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JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

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