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In this paper we analyze the Laminar MHD flow in the entrance region of an annular channel under the influence of transverse magnetic field. The motion of the fluid is between the two insulating cylinders which are concentric. The origin of the coordinate system is located at the extreme left of the channel along the central line of the cylinders, z is the coordinate which increases in the down stream direction, r is the radial coordinate and θ is the angular coordinate and is perpendicular to the (r,z) plane. The flow problem is described by means of partial differential equations and the solutions are obtained by using an implicit finite difference technique. The velocity, temperature and pressure profiles are obtained and their behavior is discussed computationally for different values of governing parameters like magnetic field parameter M and Prandtl number Pr.

In this paper Laminar MHD flow in the entrance region of a plane channel with dissipation under the influence of transverse magnetic field. The motion of laminar conducting fluid between two parallel plates is considered. The channel has height of 2a and a width of d. A rectangular coordinate system is placed on channel with the origin at the center of channel at the left hand edge. The flow problem is described by means of partial differential equations and solutions are obtained by the use of a finite difference technique. The velocity, temperature and pressure profiles are shown in graphs and their behaviour is discussed for the different values of magnetic field parameter M and Eckert Number Ek for fixed Prandtl Number Pr.

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