The main objective of this paper consists of the computation of the aerodynamic performances of symmetrical blade contours of fully reversible axial fans by Numerical (CFD) methods, developing by a public literature survey, methodology for the design of reversible axial fans and analysis of the designed fan with CFD methods. The aerodynamic shows of the blade cascades are evaluated using FLUENT 6.0 software for different boundary conditions, strengths and angles called Angle of Attack(AoA) cascade also performing for varying speeds. The consequences of these computations are embedded into the industrialized methodology. Which is designed with the developed methodology, is done with Numerical methods.

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Analysis of lid driven square cavity flow of air with three different ranges of Ri and Re are analyzed using numerically. Adiabatic temperature is maintained at horizontal walls and isothermal temperature is established at the vertical walls in which the top wall is assumed to slide with a uniform speed. Finite volume method techniques have used to solve non dimensional governing equations. To visualize the flow and thermal characteristics, the control parameters, the Richardson number (Ri) and Reynolds number (Re) and in the range of 0.001 ≤ Ri ≤ 10 and 100 ≤ Re ≤ 400 are used for streamlines and isotherms.