LAUSR

Abstract This study presents the results of an experimental investigation on the turbulence characteristics of flow over a submerged structure at three different submergence ratio. The experiments were performed in a water channel and time series of velocity data were collected by an acoustic-Doppler velocimeter (ADV). The recorded velocity data were analysed in the framework of time-averaging and profiles and contours of time-averaged velocity components, turbulent intensity components, and Reynolds stresses, are presented and discussed at different vertical and horizontal planes. This study also addressed the flow separation and reattachment region and the turbulent events associated with burst-sweep cycles. With decreasing submergence ratio marked variation in diving and lifting nature of the flow is observed at the wake region of the cube that has important implications for local sediment mobility.