Research into fluvial dunes spans disciplines, studies at grain to reach scales, and
methodological approaches that include theoretical, experimental, numerical and field …

A prominent control on the flow over subaqueous dunes is the slope of the downstream
leeside. While previous work has focused on steep (~ 30°), asymmetric dunes with …

It is widely accepted that both ripples and dunes form in rivers by primary linear instability;
the wavelength of the former scaling on the grain size and that of the latter being controlled …

Dunes dominate the bed of sand rivers and are of central importance in predicting flow
roughness and water levels. The present study has focused on the details of flow and …

Experiments carried out under flat smooth bed condition in a periodic, asymmetric, Kinoshita
meandering channel showed that bend skewness controls the three‐dimensional mean flow …

Large bedforms (dunes) are present in many shallow‐water environments. Knowledge of
their dimensions and dynamics is required for river and coastal management. In tidal rivers …

Sandy river beds are dominated by rhythmic features known as dunes. Experimental
investigations of turbulent flow and sediment transport over dunes have predominantly …

We present a 3‐D physics‐based high‐resolution modeling approach to the dynamics of
underwater ripples and dunes. The flow is modeled by large eddy simulation on a Cartesian …

Bedforms such as dunes and ripples are ubiquitous in rivers and coastal seas, and
commonly described as triangular shapes from which height and length are calculated to …

Underwater dunes are found in various environments with strong hydrodynamics and
movable sediment such as rivers, estuaries and continental shelves. They have a diversity of …