Wind Pressure Distribution on Trough Canopy Roofs

Pradeep Singh, Ashok K. Ahuja

Wind tunnel experiments are carried out to obtain the wind pressure distribution on trough canopy roof. The model made of Perspex sheet at a scale of 1:100 is tested in open circuit wind tunnel under boundary layer flow. Effects of wind incidence angle are studied y changing wind angle. Values of wind pressure coefficients are calculated from the values of wind pressures measured at numerous pressure points on upper and lower surfaces of the trough roof and are reported in the form of cross sectional variation of pressure coefficient and pressure contours. It is observed that the wind pressure distribution on the trough canopy roof is highly influenced by incident wind direction.