WIND-TUNNEL MODELING OF THE ATMOSPHERIC SURFACE-LAYER

Modelling of low-rise structures in the boundary-layer wind tunnel req uires that the investigator focus on the lowest 100 m of the atmospher ic boundary layer; the atmospheric surface layer (ASL). Most of the ke y flow properties in this lowest portion of the atmospheric boundary l ayer (ABL) have been successfully modelled in the wind tunnel for some time. However, this work demonstrates that two additional open-terrai n flow properties may also be modelled with the wind tunnel: (i) the v ertical distribution of Reynolds shear stress and; (ii) the lateral fl uctuations of wind velocity and their power spectra.