Mean velocity field around prismatic bodies in tandem arrangement

This experimental investigation reports the wind tunnel measurements of the mean velocity fields around (a) an isolated square prismatic body with height to width ratio (h/b) of 3 and (b) the same body in tandem with an identical interfering body. In the case of the studies involving interference, the ratios of the centre to centre distance to the body width (G/b) are 4 and 8. The mean velocity components are measured using a Conrad six-hole probe. The approach flow is atmospheric boundary layer with the velocity profile satisfying 1/7th power law. It is observed that the effect of interference is considerably large when G/b is small. Due to interference (i) the re-attachment distance shortens and (ii) the maximum values of transverse and vertical velocities are small. The data should be useful for validating computational codes. © 2005 Elsevier Ltd. All rights reserved.