Stagnation-point flow towards a stretching/shrinking sheet in a nanofluid using Buongiorno's model

Syahira Mansur, Anuar Mohd Ishak, Ioan Pop

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The stagnation point flow of a nanofluid towards a permeable stretching/shrinking sheet using the Buongiorno's model is studied. Numerical results are obtained using boundary value problem solver bvp4c in MATLAB for several values of the governing parameters. The numerical results show that dual (upper and lower branch) solutions exist for the shrinking case, while for the stretching case, the solution is unique. A stability analysis is performed to determine the physical realizable in practice of the dual solutions. It is found that the skin friction decreases when the sheet is stretched, but increases when the suction effect is increased. It is also found that increasing the thermophoresis parameter reduces the heat transfer rate at the surface, while increasing the Brownian motion parameter increases the mass transfer rate at the surface.

Original languageEnglish
Pages (from-to)172-180
Number of pages9
JournalProceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering
Volume231
Issue number2
DOIs
Publication statusPublished - 1 Apr 2017

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Stretching
Thermophoresis
Skin friction
Brownian movement
MATLAB
Boundary value problems
Mass transfer
Heat transfer

Keywords

  • dual solutions
  • heat transfer
  • nanofluid
  • shrinking
  • stability analysis
  • Stagnation flow

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Cite this

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