Open AccessThe Magnetohydrodynamic Stagnation Point Flow of a Nanofluid over a Stretching/Shrinking Sheet with Suction
Author(s) -
Syahira Mansur,
Anuar Mohd Ishak,
Ioan Pop
Publication year - 2015
Publication title -
plos one
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.99
H-Index - 332
ISSN - 1932-6203
DOI - 10.1371/journal.pone.0117733
Subject(s) - magnetohydrodynamic drive , nanofluid , mechanics , thermophoresis , suction , stagnation point , magnetohydrodynamics , materials science , heat transfer , solver , parasitic drag , boundary layer , classical mechanics , thermodynamics , physics , magnetic field , mathematics , mathematical optimization , quantum mechanics
The magnetohydrodynamic (MHD) stagnation point flow of a nanofluid over a permeable stretching/shrinking sheet is studied. Numerical results are obtained using boundary value problem solver bvp4c in MATLAB for several values of parameters. The numerical results show that dual solutions exist for the shrinking case, while for the stretching case, the solution is unique. A stability analysis is performed to determine the stability of the dual solutions. For the stable solution, the skin friction is higher in the presence of magnetic field and increases when the suction effect is increased. It is also found that increasing the Brownian motion parameter and the thermophoresis parameter reduces the heat transfer rate at the surface.