3D Traversing gear for the positioning of probes in the wind tunnel

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The Building Aerodynamics Laboratory of Concordia University located at the Engineering complex, houses a large atmospheric boundary-layer wind tunnel (ABLWT), the only one of this type in Québec and one of the very few in North America. It is an open circuit, blow down tunnel 12 meters long and has a test section 1.8 meters wide and 1.8 meters high. Models of buildings and their surroundings are constructed at a geometric scale (typically 1:500 to 1:200) and placed on a turntable downstream of the upcoming flow, which simulates the natural wind characteristics when wind blows towards from any direction. The ABLWT has been equipped with sensitive sensors and instruments used for accurate measurements of flow and pressure components depending on the particular application of interest. The facility has been used for numerous research studies with significant contributions in the field of wind engineering, mainly in the development of wind loading provisions for wind standards and building codes of practice around the world. Several hundreds of students, researchers, architects and engineers have been benefited by this facility during the past 25 years.