Boundary-layer flow and heat transfer of nanofluids over a permeable moving surface in the presence of a coflowing fluid

Amin Noor, Roslinda Mohd. Nazar, Khamisah Jafar, Ioan Pop

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The steady boundary-layer flow of a nanofluid past a permeable moving flat plate in the presence of a coflowing fluid is theoretically investigated. The plate is assumed to move in the same or opposite direction of the free stream. The governing partial differential equations are first transformed into ordinary differential (similarity) equations before they are solved numerically using a finite-difference scheme along with a shooting method. Numerical results are obtained for the skin-friction coefficient, the local Nusselt number, and the local Sherwood number as well as the velocity, temperature, and nanoparticle volume fraction profiles for some values of the governing parameters, namely, the plate velocity parameter, the Prandtl number, the Lewis number, the Brownian motion parameter, the thermophoresis parameter, and the nanoparticle volume fraction parameter. The numerical results indicate that dual solutions exist when the plate and the free stream move in the opposite directions.

Original languageEnglish
Article number521236
JournalAdvances in Mechanical Engineering
Volume2014
DOIs
Publication statusPublished - 2014

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Boundary layer flow
Volume fraction
Thermophoresis
Nanoparticles
Heat transfer
Fluids
Skin friction
Brownian movement
Prandtl number
Nusselt number
Ordinary differential equations
Partial differential equations
Temperature

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

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abstract = "The steady boundary-layer flow of a nanofluid past a permeable moving flat plate in the presence of a coflowing fluid is theoretically investigated. The plate is assumed to move in the same or opposite direction of the free stream. The governing partial differential equations are first transformed into ordinary differential (similarity) equations before they are solved numerically using a finite-difference scheme along with a shooting method. Numerical results are obtained for the skin-friction coefficient, the local Nusselt number, and the local Sherwood number as well as the velocity, temperature, and nanoparticle volume fraction profiles for some values of the governing parameters, namely, the plate velocity parameter, the Prandtl number, the Lewis number, the Brownian motion parameter, the thermophoresis parameter, and the nanoparticle volume fraction parameter. The numerical results indicate that dual solutions exist when the plate and the free stream move in the opposite directions.",
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AU - Pop, Ioan

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