Design and Fabrication of a Subsonic Wind Tunnel testing Machine for use in Nigerian Universities

Theoretical calculation is the major method of analysing forces and moments of which an object is subjected to by airflow basically in most Nigerian Universities. This lead to the design and fabrication of a low speed or subsonic wind tunnel. Wind tunnels are typically used for aerodynamic research to analyze the behaviour of flows under varying conditions, both within channels and over solid surfaces (AERO FOIL which is mostly tested in this wind tunnel). The machine is designed to generate airflow of various speeds through its test section. The flow of air in the wind tunnel is assumed to be steady and incompressible, thereby governed by the continuity equation and equation for the conservation of energy. This paper explains explicitly the design and fabrication process taken to achieve the subsonic wind tunnel testing machine for use in Nigerian universities.