Abstract River confluences have a complex flow and sedimentation pattern that vital influences on the hydraulic bed morphology of river reach surrounding area. Confluences can be observed in waterways with various situations such as live conditions. This condition is hydro-morphological situation high densimetric Froude number, i.e., load transport supplied from upstream. According to literatur...

The Nepal Himalayas is the source of many glacial and spring-fed river systems crisscrossing mountainous terrain. There an increasing recognition small mountain rivers (SMRs) to have a significant combined export dissolved particulate organic carbon global flux. We analyzed fluvial sediments from two SMRs compared results with large (LMRs) in Nepal. investigated matter (OM), its compositional v...

A new set of open-channel flow experiments and turbulence resolved data are presented in heavy particle sheet flows (Shields number 0.35???0.85) for which the proportions bedload suspended load both important (ratio settling velocity friction range 0.8?ws/u*?1.3). The effects sediments particularly on turbulent suspension have been addressed by gradually increasing concentration from clear wate...

We present results from Euler–Lagrange simulations of turbulent flow over an erodible monodisperse bed particles at a shear Reynolds number Reτ=180. The Galileo Ga and the ratio Shields to critical Θ/θcr were varied in range 11.4 29.8 1.32 5.98, respectively. Two drag force models investigated along with influence lift, particle rotation, tangential collision forces for each model. Both give si...