Computational Fluid Dynamics (CFD) is an extremely effective tool to solve problems involving mass and even heat transfer. Problems with varying degrees of complexities can now be easily solved with the help of appropriately written CFD codes. A CFD analysis is performed to:1)understand the nature of fluid flow around differsnt geometries like an aerofoil or any other shape for that matter.2)find the lift and drag effects for an aerodynamic structure.3)analyse the heat transfer by fluids in devices ranging from radiators to furnaces to gas turbine combustion to rocket propulsion. 4)analyse fluid flow in complex piping networks, etc.,. 5) boundary layer analysis for many different applications.5)optimum circuit board design for efficient cooling,..........etc. ANSYS FLOTRAN is a very capable software that could be positively used to analyse fluid flow problems ranging from steady state and transient state to compressible and incompressible flow to laminar and turbulent flow. This presentation gives the procedural steps for performing a simple CFD analysis for a convergent flow using ANSYS 10.0 software.