It is widely acknowledged that streamwise ridges on the bed of open-channel flows generate
secondary currents (SCs). A recent discovery of meandering long streamwise counter …

The paper reports the results of laboratory experiments to investigate the effect of vegetation
patch mosaics on hydraulic resistance. Experiments were run for seven levels of vegetation …

Stereoscopic particle image velocimetry measurements of open-channel flows over
streamwise-orientated triangular-shaped ridges were used to explore interactions between …

The channel length required for the development of the flow, from the channel entrance to
full establishment, is often a prerequisite when designing hydraulic structures or planning …

The results of large-eddy simulations of open-channel flows over spanwise heterogeneous
surface ridges at two representative spanwise spacings are presented. Flows at moderate …

In rivers, fine sediments are often transported over immobile coarse grains. With low
sediment supply, they tend to aggregate in longitudinal ribbons. Yet, the long‐term evolution …

Bed-load streaky structures are typical bed morphological features, yet its formation
mechanism remains unclear. To fill this knowledge gap, flume experiments were conducted …

Large-scale coherent structures are key elements of open-channel flow turbulence,
quantification of which remains elusive. In this work, we use empirical mode decomposition …

Time-averaged velocity fields in uniform open-channel flows over rough beds may exhibit
spatial heterogeneities due to the effects of bed roughness and secondary currents (SCs) …

We employ spectral-space and real-space quantities to characterize large-scale motions
(LSMs) and very-large-scale motions (VLSMs) in open-channel flows (OCFs). The obtained …