Green Buildings
Ventilation through building openings has long been considered an effective means of improving indoor air quality in living spaces.
Although green roofs and façade greening are wide spread for urban buildings, their effect on ventilation is not yet fully understood. Experimental investigation of the relevant aerodynamic effect on the air exchange of an isolated building exposed to wind can be studied through a series of Wind Tunnel tests.
A typical building model can be represented with a plexiglas cube with visible slot openings on all sides, pressure tap positions on the roof and a single sidewall and the inner column concealing the pressure tubing and (right) front view of the actual cube model. An upstream view of the test section is presented where the spires and roughness elements are visible. The plexiglas model is located at the centre of the turntable at the 2nd Wind Tunnel Section. Streamwise velocity contours and in-plane flow lines on the planes along the cube centreline is presented for cases of different sheared inflows and openings variations (fully opened, fully closed).
