HYDROMAGNETIC FLOW OVER A HEATED STRETCHING SURFACE
KOTAGIRI SRIHARI *
Department of Mathematics, Mahatma Gandhi institute of Technology, Gandipet, Hyderabad, Telangana State, India.
*Author to whom correspondence should be addressed.
The steady flow and heat transfer of a viscous incompressible fluid flow over a heated stretching sheet with temperature dependent viscosity is considered. A magnetic field of uniform strength is applied normal to the fluid flow. In order to establish a finite condition z®1 instead of an infinite boundary condition, the governing equations in non-dimensional form are transformed to new system of co-ordinates, in which the equation of motion is a non-linear ordinary differential equation that is linearised by Quassi-linearisation method. Then they are transformed to system of linear equations using finite difference formulae for which a numerical code is executed using C-program. The results for the velocity and temperature are discussed and analyzed for different values of the parameters. It is observed that the velocity of the fluid decreases in the presence of magnetic field. The results obtained are in good agreement with realistic physical phenomenon.
Keywords: Steady flow, heated stretching sheet, temperature dependent viscosity, Quassi-linearization, finite difference methods.