The turbulence characteristics in open-channel flow owing to a sudden change from smooth
(upstream) to rough (downstream) bed are investigated experimentally using a Particle …

The experimental study shows how an open-channel flow would respond to a sudden
change (from smooth to rough) in bed roughness. Using a two-dimensional acoustic …

Turbulent flow characteristics over an abrupt step change in bed roughness from smooth to
rough are studied measuring the flow field by a Particle Image Velocimetry (PIV) system. The …

Flow regimes were investigated in the cavity formed between the roughness elements in a
laboratory water flume. Further tests were carried out on similar aspect ratio of the cavity to …

This work experimentally investigates the turbulent flow characteristics of developing and
fully-developed flows over a rough bed channel that is subjected to downward seepage …

Turbulence characteristics in a fully developed flow over a gradually varied bed roughness
are investigated. The results of the Reynolds stress profiles indicate that they increase with …

In another research work, Kirkgoz (1989) carried out a number of experiments over rough
surfaces in a uniform flow, with average roughness heights from 1 to 12 mm, Froude number …

In another research work, Kirkgoz (1989) carried out a number of experiments over rough
surfaces in a uniform flow, with average roughness heights from 1 to 12 mm, Froude number …

Large variations in the flow field and bottom stress may be determined by an abrupt change
of the channel bed from smooth to rough. The variation in the mean local velocities …

Laboratory experiments have been carried out in order to study secondary circulation and
flow variability in straight open channel flows over a rough bed. 3D flow velocities and …