Stagnation-point flow over a stretching/shrinking sheet in a nanofluid

Norfifah Bachok, Anuar Mohd Ishak, Ioan Pop

Research output: Contribution to journalArticle

99 Citations (Scopus)

Abstract

An analysis is carried out to study the steady two-dimensional stagnation-point flow of a nanofluid over a stretching/shrinking sheet in its own plane. The stretching/shrinking velocity and the ambient fluid velocity are assumed to vary linearly with the distance from the stagnation point. The similarity equations are solved numerically for three types of nanoparticles, namely copper, alumina, and titania in the water-based fluid with Prandtl number Pr = 6.2. The skin friction coefficient, Nusselt number, and the velocity and temperature profiles are presented graphically and discussed. Effects of the solid volume fraction ø on the fluid flow and heat transfer characteristics are thoroughly examined. Different from a stretching sheet, it is found that the solutions for a shrinking sheet are non-unique.

Original languageEnglish
Article number623
Pages (from-to)1-10
Number of pages10
JournalNanoscale Research Letters
Volume6
DOIs
Publication statusPublished - 2011

Fingerprint

stagnation point
Stretching
Fluids
skin friction
Aluminum Oxide
Skin friction
fluids
Prandtl number
Nusselt number
temperature profiles
coefficient of friction
fluid flow
Flow of fluids
Copper
Volume fraction
Alumina
aluminum oxides
titanium
Titanium
velocity distribution

Keywords

  • Dual solutions
  • Heat transfer
  • Nanofluids
  • Stagnation-point flow
  • Stretching/shrinking sheet

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Stagnation-point flow over a stretching/shrinking sheet in a nanofluid. / Bachok, Norfifah; Mohd Ishak, Anuar; Pop, Ioan.

In: Nanoscale Research Letters, Vol. 6, 623, 2011, p. 1-10.

Research output: Contribution to journalArticle

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