In this article unsteady three dimensional MHD boundary layer flow and heat
transfer analysis with constant temperature (CT) and constant heat flux (CH)
in a porous medium is considered. The boundary layer flow is governed by a
bidirectional stretching sheet. Similarity transformations are used to
transform the governing non-linear partial differential equations to ordinary
differential equations. Analytical solutions are constructed using homotopy
analysis method (HAM). Convergence analysis is also presented through tabular
data. The quantities of interest are the velocity, temperature, skin friction
coefficient and Nusselt number. The obtained results are validated by
comparisons with previously published work in special cases. The results of
this parametric study are shown graphically and the physical aspects of the
problem are discussed.