The present book "Some Hydrodynamic and Hydromagnetic Unsteady Flows "
is devoted to the mathematical investigations of two- and
three-dimensional problems related to unsteady, free convective,
hydrodynamic and magnetohydrodynamic flows through porous and non porous
medium in non-rotating and rotating systems. It is hoped that the
mathematical solutions obtained in this work contribute not only to a
better understanding of the problems they deal with, but also find
significant applications in many engineering, industrial and environment
processes e.g. solar power technologies, nuclear power plants, MHD
generators and accelerators in geophysics, space vehicle reentry,
polymer production, food processing and manufacturing of ceramics or
glassware etc.In the present work deals with the treatment of the
governing equations, i.e. Firstly the equations governing the flow are
formulated, Secondly they are reduced to non-dimensional form and
finally their solution is obtained by perturbation technique or series
expansion method etc.