Abstract: In order to clarify the role of sand bed instability mechanism and the significance of linear instability analysis, which has been one of the most interesting subjects of alluvial hydraulics, sand bed instability analysis ...

Abstract: An investigation of cellular secondary currents, i.e., three‐dimensional flow patterns, is very important in hydraulic engineering because these currents might cause three‐dimensional sediment distributions and bed ...

Abstract: Basic knowledge of turbulent structures in open‐channel flows are now available from accurate experimental data that were obtained using a laser Doppler anemometer in laboratory flumes. Many of these experiments have, ...

Abstract: Steps leading to the numerical study of the hydrodynamic behavior of a compound open channel are described. The method uses an algebraic stress model imbedded, together with an energy‐dissipation model, in a parabolic ...

Abstract: The hydrodynamic response of the turbulent flow in a compound rectangular open channel to the flood‐plain depth, roughness, and symmetry, and to the channel Reynolds number is demonstrated. The flow in the four basic ...

Abstract: Unstable patterns are identified in the results of numerical simulations of two cases of partly vegetated open channels, at the free unobstructed flow side of the shear layer that separates the unobstructed channel from ...

Abstract: The hydrodynamic response of turbulent flow in a compound wide rectangular open channel with a vegetated domain at the channel bank, in a channel corner and in a floodplain, to the vegetation density and diameter is ...

Abstract: Turbulence measurements over a smooth wall in unsteady depth-varying open-channel flows were conducted by the simultaneous use of a two-component laser Doppler anemometer (LDA) and a water-wave gauge. In the present study, ...