Wind Tunnel Test of UTM Sport Complex

Abstract

Apart from sporting purposes, sport complexes are also increasingly being used for concerts and other events with large spectator attendance. As such, the safety of the sport complex is very important to ensure all spectators and occupants in and inside and nearby the stadium are safe. One of the initial work to ensure safety is to conduct an aerodynamic characteristic study of the forces and moments of the sport complex using a wind tunnel to provide data for the structural design engineers and architects. Hence, the objective of this project was to perform a wind tunnel testing on UTM sport complex mode to obtain its aerodynamics characteristics. The tests were conducted in the UTM Low Speed Wind Tunnel by using semi-span balance to obtain the forces and moments. The maximum coefficient drag of force is 0.115 occurs at 20⁰ yaw angle with the wind speed 5.56m/s, whereas the maximum coefficient of axial force is 0.025 occurs at 0⁰ yaw angle with the wind speed 8.33m/s. The maximum moment coefficient is 0.01 at -30⁰ for axial (rolling). Thus, with these values the UTM sport complex can be designed safely.