Boundary layer flow past a stretching/shrinking surface beneath an external uniform shear flow with a convective surface boundary condition in a nanofluid

Nor Azizah Yacob, Anuar Mohd Ishak, Ioan Pop, Kuppalapalle Vajravelu

Research output: Contribution to journalArticle

109 Citations (Scopus)

Abstract

The problem of a steady boundary layer shear flow over a stretching/shrinking sheet in a nanofluid is studied numerically. The governing partial differential equations are transformed into ordinary differential equations using a similarity transformation, before being solved numerically by a Runge-Kutta-Fehlberg method with shooting technique. Two types of nanofluids, namely, Cu-water and Ag-water are used. The effects of nanoparticle volume fraction, the type of nanoparticles, the convective parameter, and the thermal conductivity on the heat transfer characteristics are discussed. It is found that the heat transfer rate at the surface increases with increasing nanoparticle volume fraction while it decreases with the convective parameter. Moreover, the heat transfer rate at the surface of Cu-water nanofluid is higher than that at the surface of Ag-water nanofluid even though the thermal conductivity of Ag is higher than that of Cu.

Original languageEnglish
JournalNanoscale Research Letters
Volume6
Issue number1
DOIs
Publication statusPublished - Jan 2011

Fingerprint

boundary layer flow
Boundary layer flow
Shear flow
shear flow
Stretching
Boundary conditions
boundary conditions
Water
heat transfer
Nanoparticles
Heat transfer
nanoparticles
water
Volume fraction
Thermal conductivity
thermal conductivity
Runge-Kutta method
Runge Kutta methods
Ordinary differential equations
partial differential equations

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Boundary layer flow past a stretching/shrinking surface beneath an external uniform shear flow with a convective surface boundary condition in a nanofluid. / Yacob, Nor Azizah; Mohd Ishak, Anuar; Pop, Ioan; Vajravelu, Kuppalapalle.

In: Nanoscale Research Letters, Vol. 6, No. 1, 01.2011.

Research output: Contribution to journalArticle

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