Complex sentence: Aerodynamic testing was performed by applying a scaled wind velocity on a 1:500 scale model of the skyscraper equivalent to applying an average hourly wind velocity of 40 m/s on the actual design.
Split into simpler sentences: Aerodynamic testing was performed by applying a scaled wind velocity on a 1:500 scale model of the skyscraper. These conditions are equivalent to applying an average hourly wind velocity of 40 m/s on the actual design.