TY - JOUR
TI - Unsteady boundary layer flow and heat transfer of Oldroyd-B nanofluid towards a stretching sheet with variable thermal conductivity
AU - Motsa Sandile Sydney
AU - Ansari Mohammad Sharifuddin
JN - Thermal Science
PY - 2015
VL - 19
IS - 11
SP - 239
EP - 248
PT - Article
AB - This paper presents a time dependent boundary layer flow and heat transfer of  an incompressible Oldroyd-B nanofluid past an impulsively stretching sheet.  Heat transfer analysis is carried out by taking thermal conductivity as a  function of temperature. The non-dimensionalized partial differential  equations are solved using bivariate spectral quasi-linearization method).  The employs the concept of quasi-linearization to obtain a linear system of  partial differential equations which is subsequently solved using a spectral  collocation method that uses bivariate Lagrange interpolating polynomials as  basic functions. This method is found to converge rapidly and is very  effective in yielding accurate results. Numerical results have been presented  graphically to illustrate the details of flow and heat transfer  characteristics and their dependence on some of the physical parameters.