Some effects due to variations in turbulence integral length scales on the pressure distribution on wind-tunnel models of low-rise buildings.

Describes results from wind-tunnel tests on models of the Building Research Establishment's experimental building at Aylesbury. The use of several scale models of this building in uniform and in simulated atmospheric boundary-layer flows together with the results from the full-scale experiments allow an assessment of the effect of variations in the ratio of the longitudinal- turbulence integral length scale to body dimension. This confirms that the values of this ratio have to be modelled correctly even in a non-homogenous non-isotropic turbulent flow in order to obtain model results that are representative of the full-scale situation. The present results also appear to confirm explanations given for similar results for homogeneous isotropic turbulent flows.